“Not having returned home yet, _________”, his father said to the police.
#63543
A
his mother got worried
B
his mother must be worried
C
I think he is missing
D
he must have got into some trouble.
推荐题目
He _____ have fallen asleep last night because he didn’t hear the phone call.
#63261
A
may
B
should
C
can
D
must
Don’t put off today’s work for tomorrow. I mean, today’s work______ today.
#76911
A
may do
B
must do
C
may be done
D
must be done
---- Can I watch TV now? ---- No, you ________. You _______ do your homework first.
#76429
A
can’t; can’t
B
can’t; must
C
mustn’t; can’t
D
needn’t; must
If the students who killed themselves had only been more confident, their deaths ________.
#63688
A
need have been avoided
B
must have been avoided
C
might have been avoided
D
will have been avoided