问题补充:
---Fifty dollars for such a T-shirt!You be joking!
--- I’m serious. It’s made of silk.
A. must
B. need
C. may
D. can
答案:
(答案→)A. must
B. need
C. may
D. can
解析:
试题分析: A. must表示肯定 B. need需要C. may可能D. can能够;句意:这件T恤要50美金!你肯定是在开玩笑!我是认真的。它是丝绸做的。表示肯定的推测用must,故选A
考点: 情态动词