Okay, let's complete the test with the most appropriate tag questions:
1. Don't take all the money, **will you?**
*Explanation:* This is a negative imperative sentence, so we use "will you?" to form the tag question.
2. I'm very nice, **aren't I?**
*Explanation:* Although "am I not?" is grammatically correct, "aren't I?" is the commonly used and accepted form.
3. Let's make a snowman, **shall we?**
*Explanation:* "Let's" indicates a suggestion or invitation, so the correct tag question is "shall we?"
4. There won't be any trouble, **will there?**
*Explanation:* The main clause is negative ("won't be"), so the tag question is positive. "There" is the subject.
5. Let him use your phone, **will you?**
*Explanation:* This is an imperative sentence, similar to the first one, so we use "will you?"
6. There weren't any spots there, **were there?**
*Explanation:* The main clause is negative ("weren't"), so the tag question is positive, and "there" is the subject.
7. Shut up, **will you?**
*Explanation:* This is an imperative, so the tag question "will you?" is appropriate.
8. She used to walk to work, **didn't she?**
*Explanation:* "Used to" implies a past action, so we use "didn't" in the tag question.
9. You were lying, **weren't you?**
*Explanation:* Simple past tense needs the appropriate auxiliary verb in the tag question.
10. There are a few peaches, **aren't there?**
*Explanation:* "There are" requires "aren't there?" as the tag.
11. He wasn't at home, **was he?**
*Explanation:* Negative statement, so positive tag.
12. You will do it, **won't you?**
*Explanation:* Simple future tense requires the correct auxiliary in the tag.
13. It's happened before, **hasn't it?**
*Explanation:* "It's" implies present perfect, so use "hasn't it?"
14. Nothing can stop us, **can it?**
*Explanation:* "Nothing" is a negative word, so the tag is positive.
15. Somebody took my coat yesterday, **didn't they?**
*Explanation:* Simple past tense requires "didn't". "Somebody" is treated as "they" in tag questions.