情态动词和系动词
【2013江苏连云港】7. From March 23rd 2013, anyone under the age of 14 ________ go into Disney's US parks alone.
A. couldn't B. mustn't C. needn't D. mightn't
7. 【答案】B
【2013四川宜宾】34.—Li Lei, hurry up! The bus is coming.
—Oh, no. We ______ cross the street until the traffic lights turn green.
A. mustn’t B. may not C. needn’t D. have to
【答案】A
【2013山东烟台】21.—Whose book is this?
—It our geography teacher’s. You see, his name is on it.
A. can’t be B. can be C. mustn’t be D. must be
D 【解析】考查情态动词的用法。句意为：这是谁的书？它______ 我们的地理老师的。你看，他的名字在上面。can’t be不可能是；can be 可能是； mustn’t be一定不是；must be一定是。故选D。
