问题补充:
---Hi, Tom. Any idea where Jane is?
---She in the classroom. I saw her there just now.
A. shall be
B. should have been
C. must be
D. might have been
答案:
A. shall be
B. should have been
C. must be
D. might have been
解析:根据语境知道问现在在哪里,而第二句话是指我刚才见到他在教室里,由此可以肯定,她现在一定在教室里,是对现在的肯定推测。