“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
—— Where is your father? —— He has gone to the supermarket. He __________ at home.
#74996
A
must be
B
mustn’t be
C
can be
D
can’t be
—Catherine, I have cleaned the room for you.—Thanks, you __________it. I could manage it myself.
#63430
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done
—Whose book is this? —It _____ be Mary’s. Mo Yan is her favorite author. —No, it ____ be hers, she never brings novels to school.
#75008
A
may; mustn’t
B
can; can’t
C
must; can’t
D
must; mustn’t
— Look at the boy playing basketball on the ground. Is it George?— It ________ be him. He told me he would play basketball after class, but he’s not sure.
#75386
A
mustn’t
B
must
C
can’t
D
may
A left-luggage office is a place where bags ________ be left for a short time, especially at a railway station.
#62936
A
should
B
can
C
must
D
will