问题
选择题
— Hi, Tom．Any idea where Mary is? ．
一 She ______in the reading room．I saw her there just now．
A．shall be
B．should have been
C．should be
D．might have been
答案
答案：C
这题考查情态动词的用法：这是对现在情况的猜测，所以排除B和D，这里是根据I saw her there just now．推理出她应该在阅览室。Should表示按道理应该，选C。
