—Look at the boy running on the ground. Is it David?—It _____be him. I saw him go to the teacher
A. might B. could C. can't D. mustn't
题目简介
—Look at the boy running on the ground. Is it David?—It _____be him. I saw him go to the teacher
题目详情
—It _____be him. I saw him go to the teacher's office just now.
A. might
B. could
C. can't
D. mustn't
答案