题目内容
Who’s that boy reading in the garden? Is it David?
----It______be David. I saw him in the classroom just now.
A. must B. can’t C. may D. shouldn’t
练习册系列答案
相关题目
题目内容
Who’s that boy reading in the garden? Is it David?
----It______be David. I saw him in the classroom just now.
A. must B. can’t C. may D. shouldn’t