问题
选择题
The book I bought from the bookstore isn’t here. Who __________?
A．could have taken it
B．must have taken it
C．might take it
D．should take it.
答案
答案：A
主要测试虚拟语气。有语境可知译文如下：我从书店借的书不见了。谁可能会拿走它呢？句子应该属于对过去的推测，另外还要符合疑问句中的要求。