Question

【题目】 He failed in the driving test again,He______.

A. must have disappointed

B. must have been disappointed

C. must be disappointed

D. must disappoint

Answer 1

【答案】B

【解析】表示“感到失望”用“be disappointed”，另外根据上句的信息可知，本题是对过去情况的推测，因此情态动词must后要跟不定式的完成式，正确答案为B项。