Ⅰ. 用情态动词的正确形式填空
1. Listen, please. You (may not/might not) may not speak during this exam.
2. They (can’t/may not) can’t still be out!
3. You(couldn’t/might not) couldn’t smoke on the bus.
4. With luck, tomorrow (can/could) could be a cooler day.
5. You (can/might) might be right but I’m going back to check the times.
6. You’ve been working all day. You (could/must) must be very tired.
7. I wonder who it is. It (can’t/mustn’t) can’t be Lisa. She’s still in the library now.
8. My father’s birthday is coming. What (shall/may) shall I give him?
9. It’s a long time since we met last time. You (might/should)should see us more often.
10. Why don’t you try on this dress? It (will/can)will look nice on you.