COMMA OR SEMICOLON? A THREE-MINUTE GRAMMAR CHECK
PeakSAT | Original teaching activity | Reviewed October 19, 2026

1. CHOOSE (45 seconds)
The first sample was damaged___however, the second sample remained intact.

Which choice creates a conventional boundary?
A. ,
B. ;
C. no punctuation
D. :,

2. EXPLAIN (60 seconds)
Find the subject and finite verb on each side of the blank.
Can each side stand as a sentence? What job does "however" do?

3. TRANSFER (75 seconds)
Although the first sample was damaged___the second sample remained intact.

Which single punctuation mark fits? Explain why the opening word changes the decision.

Try and check: https://www.peaksat.com/resources/sat-grammar-bellringer
Keep a corrected rule: https://www.peaksat.com/tools/sat-error-log

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