---Look at the boy running on the playground. Is it David? ---It ______ be him. I saw him go to the teachers’ office just now.
#76689
A
mustn’t
B
can’t
C
couldn’t
D
must
推荐题目
--- I hope Jim won’t mind lending you his new digital camera. --- He ___________. I have already borrowed one from my cousin, David.
#76637
A
shouldn’t
B
mustn’t
C
needn’t
D
can’t
--- The fog is so thick that the express way ____ have been closed. --- You are right. I ____ have thought of that. Now we have to take another road.
#63639
A
can; should
B
may; can
C
should; must
D
must; should
—Are you in a hurry?—No, I’ve got plenty of time. I _______ wait.
#75359
A
can
B
can’t
C
must
D
mustn’t