全国通用2011届高考英语二轮总复习经典易错题详解与试题预测：  考点4    情态动词和虚拟语气     综合训练

I.单项选择

1   Our house is on the top of the hill, and in winter the winds _  _ be pretty cold.

    A. must                   B. ought to   C. can                    D. need

答案: C

解析:can表示一种逻辑上的可能。

2   They must have finished the second book by the end oflast month, __  ?

    A. didn’t they            B. hadn’t they   C. mustn’t they           D. haven’t they

答案: B

解析:句中含过去完成时的时间状语by the end of。

3   He  __ another career, but at the time, he didn’t have enough money to attend graduate school.