问题

Who’s that boy reading in the study ? Is it David?—It __________ be David. I saw him go home just now.

A:must
B:can’t
C:may
D:shouldn’t

正确答案是：

标签： boy , david , who

同类题型

When I was a boy, I often ______ to play in that park.

I’m at the news.

Do you know the man 　　　　 came here yesterday? — Yes, he brought me the most interesting book 　　　　 I had wanted to buy.

Can you go to the concert with us? –Sorry, I can’t．I have ________homework to do and I’m _______tired.．

__________ is the cost of the trip?— Ten dollars per person.