Ⅰ. 用情态动词或所给词的适当形式填空
1. Helen may/might go on the trip with us, but she isn’t quite sure yet.
2. More reserves should be set up so that they can live safely.
3. Shall we go on with this activity on Saturday morning?
4. He ought to clean the classroom after school.
5. The manager said that he was leaving (leave) at seven the next Friday.
6. You must be tired after the long trip, aren’t you?
7. He said he would be(be) ninety years old in two years.
8. May you pass the College Entrance Examination!
9. It is strange that he should think so.
10. Must you make so much noise while I was working?