Question

(2006年徐州市)

--- Must I finish that work today?

--- No, you ________. You may finish it in three days.

[　　]

A．mustn't

B．needn't

C．shouldn't

D．couldn't

Answer 1

答案：B
解析：

解析：情態(tài)動詞mustn't意為“不允許”；needn't意為“不必”，用來對must作否定回答。故選B。

提示：

啟示：情態(tài)動詞有can, may, must, need等，構(gòu)成疑問句時，肯定回答分別是：Yes，主語＋can. /Yes，主語＋may. /Yes，主語＋must. /Yes，主語＋must.。否定回答分別是：No，主語＋can't. /No，主語＋mustn't. /No，主語＋needn't. /No，主語＋needn't.。