Question

【题目】---Look at the boy running on the ground . Is it Davis?

---It ________ be him. I saw him go to the teacher’s office just now.

A. must B. can’t C.could D. might

Answer 1

【答案】B

【解析】

试题分析：句意：—看那个穿过场地的男孩，是戴维斯吗？—不可能是他。我刚才看见他去老师的办公室了。根据句意，表示不可能，故选B。