Sentence Boundaries practice questions

Sentence Boundaries questions ask how two clauses can correctly be joined: with a period, a semicolon, a comma and a conjunction, or not at all. Check whether each side could stand alone as a sentence before choosing the punctuation.

Sentence Boundaries questions

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  1. 1Sentence boundariesFoundation

    The kiln reached temperature overnight _____ the glaze had still not melted by morning. Which choice completes the sentence so that it conforms to Standard English conventions?

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    Answer: but

    Both halves are complete sentences with contrasting content, so a coordinating conjunction joins them. A comma alone would create a comma splice.

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  2. 2Sentence boundariesStandard

    The seed library lends packets to residents. _____ it also offers short classes on saving seeds. Which choice completes the text so that it conforms to Standard English conventions?

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    Answer: Also,

    "Also" introduces the second independent clause and is followed by a comma. The other choices create a comma splice or incorrect punctuation.

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  3. 3Sentence boundariesStandard

    The chef tested the sauce several times _____ the final version used less salt. Which choice completes the text so that it conforms to Standard English conventions?

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    Answer: , and

    The sentence contains two independent clauses. A comma followed by "and" joins them correctly: the chef tested the sauce, and the final version used less salt.

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  4. 4Sentence boundariesStandard

    The tide pools are easiest to reach at dawn _____ the water is lowest then and the rocks are least slippery. Which choice completes the sentence so that it conforms to Standard English conventions?

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    Answer: ;

    Both halves are complete sentences. A semicolon joins them correctly, while a comma alone would create a comma splice.

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  5. 5Sentence boundariesStandard

    The path floods every spring _____ the council has never closed it. Which choice completes the sentence so that it conforms to Standard English conventions?

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    Answer: yet

    Both halves are complete sentences standing in contrast, so a coordinating conjunction joins them. A comma alone would create a splice.

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  6. 6Sentence boundariesStandard

    The bridge was rebuilt in 1978 _____ the original stone piers were kept. Which choice completes the sentence so that it conforms to Standard English conventions?

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    Answer: but

    Both halves are complete sentences standing in mild contrast, so a coordinating conjunction joins them. A comma alone would be a splice.

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  7. 7Sentence boundariesStandard

    The mill closed in 1974 _____ its water wheel still turns for visitors. Which choice completes the sentence so that it conforms to Standard English conventions?

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    Answer: yet

    Both halves are complete sentences standing in contrast, so a coordinating conjunction joins them; a comma alone would create a splice.

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  8. 8Sentence boundariesStandard

    Which choice completes the text so that it conforms to the conventions of Standard English? The kiln reached temperature at four in the ______ potters had been feeding it since noon the day before.

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    Answer: morning; the

    Both halves stand alone as sentences, so joining them with a comma alone is a splice and running them together is a fused sentence. A semicolon joins two complete sentences without a conjunction. The last choice adds a conjunction and then separates it from its own clause.

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  9. 9Sentence boundariesStandard

    Which choice completes the text so that it conforms to the conventions of Standard English? The recipe calls for ______ pinch is enough for six servings.

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    Answer: saffron; a

    Each half is a complete sentence, so a comma alone splices them and no punctuation fuses them. A semicolon joins two complete sentences directly. The last choice adds a conjunction and then cuts it off from its own clause.

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  10. 10Sentence boundariesChallenge

    Which choice completes the text so that it conforms to the conventions of Standard English? The kiln was fired for thirty hours ______

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    Answer: ; the potters slept in shifts.

    Both halves are complete sentences with no conjunction between them, which is exactly what a semicolon is for. No punctuation fuses them, a comma alone splices them, and the third choice ends on a conjunction with nothing after it.

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  11. 11Sentence boundariesChallenge

    Which choice completes the text so that it conforms to the conventions of Standard English? The frost lifted at noon ______

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    Answer: , but the ice on the path stayed until dusk.

    Both halves are complete sentences, so joining them takes a comma plus a conjunction. A comma alone splices them, no punctuation fuses them, and the third choice ends on a conjunction with nothing following it.

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  12. 12Sentence boundariesChallenge

    Which choice completes the text so that it conforms to the conventions of Standard English? The ferry runs only in summer ______

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    Answer: ; for the rest of the year the crossing is by air.

    Two complete sentences with no conjunction between them are joined by a semicolon. A comma alone splices them, no punctuation fuses them, and the participle version trails off on a conjunction with nothing after it.

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  13. 13Sentence boundariesChallenge

    Which choice completes the text so that it conforms to the conventions of Standard English? The tunnel was surveyed in 1911 ______

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    Answer: , but no plan of it survives.

    Two complete sentences joined by a coordinating conjunction take a comma before it. A comma alone splices them, no punctuation fuses them, and the last choice ends on a conjunction with nothing after it.

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  14. 14Sentence boundariesChallenge

    Which choice completes the text so that it conforms to the conventions of Standard English? The lock gates were replaced in 1972 ______

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    Answer: ; the original elm gates are displayed in the museum.

    Two complete sentences with no conjunction between them take a semicolon. A comma alone splices them, no punctuation fuses them, and the last choice ends on a conjunction with nothing after it.

    How did you do?

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SAT® Sentence Boundaries Practice Questions | Free SAT Prep