-ShallIgetonemorecakeforyou,Dad?-Thanks,butyou,I'vehadenough.A.maynotB.mustnotC.can'tD.needn't

Question

-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

Answer 1

-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）.