专题六 情态动词和虚拟语气
Ⅰ.用适当的情态动词填空
1．—Nowadays children have more freedom.
—I agree.They ________ do what they like.
2．—Please don't tell anybody.
—I ________.I promise.
3．When I lived with my roommates in the university，we________ often talk into the night.
4．—Where did you get The Frog written by Mo Yan?
—I picked it up from a bookshop online if you ________ know.
5．Students ________ remain in their seats until all the papers have been collected.
6．I know that it will be difficult to pick him out in such a crowd，but if you ________ happen to see him，give him this packet.
7．—Why does Thomas speak through every discussion but never listen to the others?
—That's what he ________ do.We used to hate that，but are used to it now.
