1. didn't she?
2. doesn't he?
3. won't you?
4. aren't we?
5. will you? (or won't you)
6. shall we?
7. didn't they?
8. mustn't he?
9. are they?
10. aren't I?
Explanation: look at the verbs and pronouns used in the sentence as a clue to what question tag you should use. For example, in number four, the question starts with "we are going". Therefore, the question tag should use the same pronoun and verb combination ("we are") but in an inquiring form. This would make the tag "aren't we?".
When the pronoun and verb combination aren't immediately able to be distinguished, like in question three, you will have to do a bit of detective work to find them. Think of the example question as just a question, without any tags: "pick up your clothes from the floor" can just as easily become "will you pick up your clothes from the floor". Now the verb and pronoun combination has been revealed as "will" and "you"; here, you can now formulate your question tag, which would be "will you?" or "won't you?"
