1. You (couldn’t/mayn’t/won’t) park your car here. It’s reserved for guests of the hotel only. 2. You (could/might/will) want to stop by the museum gift shop on your way out.
3. (Could/Have to/May) I have your autograph?
4. (May/Have to/Might) I sit here?
5. I (can/could/have to) speak both English and Chinese fluently.
6. I can’t find my watch anywhere. I (could/may/might) have lost it.
7. Professor, (can/could/may) I ask a question?
8. (Could/Have to/Might) you please lower your voice?
9. They (can’t/ don’t have to /mightn’t) finish the project on time. The main engineer is ill.