问题

Where is Jack?— He _________ football on the playground with those AFS students, but I am not sure.

A:must be playing
B:must have played
C:may be playing
D:may have played

正确答案是：

同类题型

Dad, where are my favorite cartoon books I’d like to read them.—Sorry, dear, the books _____ when I got to the bookstore.

It’shottoday.Whynotgoforaswim—________.Let’sgo.

My sports shoes are _____ out.—How long have you_____them

The movie covers all of Chinese history. It is _________ worth seeing again.

These days the TV series In the Name of the People (《人民的名义》) is very hot. Have you seen it—Yes, it’s quite perfect play, so I can’t wait to turn on the TV when I get home.