Answers for self-assessment on sentence-level punctuation

Yes, that's a good punctuation mark here.

No, that punctuation isn't possible here.

Yes, an exclamation mark is possible here, but only if there are very few others in the passage. An exclamation mark should distinguish the sentence concerned from the other sentences around it.

Yes, that's the best place for a single comma. Of course, commas are possible in other places as well, but this place needs one more than any of the alternatives do.

No, that's not the right place for a single comma. Of course, a comma may be possible here, but even so a comma will be appropriate only if commas are used in many other places in the same sentence. This is not the point in the sentence which needs a comma most urgently.

Yes, that's right - semicolon. The following clause could have been a separate sentence, and doesn't restate the first two clauses.

Yes, that's right - colon. The following clauses restate the first one by giving more details about the words used.

Yes, that's right - colon. The following clauses restate the first one by saying precisely what there is to do.

Yes, that's right - semicolon.The writer could have used and to join the two clauses.

No. The following clause could have been a separate sentence, and doesn't restate the first two clauses.

No. The following clauses restate the first one by giving more details about the words used.

No. The following clauses restate the first one by saying precisely what there is to do.

No. The writer could have used and to join the two clauses.