-Shall I get one more cake for you,Dad?-Thanks,but you___,I'
2个回答

-Shall I get one more cake for you,Dad?

-Thanks,but you___,I've had enough.

A.may not B.must not

C.can't D.needn't

[答案与解析]选D.本题考查情态动词否定结构,B、C两项分别表示“决不能”和“不能”,

都含有强烈的禁止意味,不符合语境.A项表达不太肯定的推测,但回答中明显是事实.D项

表示“不必,不需”,是本题答案.

——爸爸,我再给你一款蛋糕好吗?

但是不必了,我已经吃饱了(足够多了).