问题
选择题
---Hi, Tom. Do you have any idea where Jane is?
---She _________ in the classroom. I saw her there writing her composition just now.
A．shall be
B．could be
C．must be
D．might be
答案
答案：C
情态动词考查题，must表肯定推测。句意：汤姆你知道珍妮在哪吗？她一定在教室里刚才我看见她在那写作文。