—Can I go to the park, Mum?—Certainly. But you ______ be back by six o’clock.
#76284
A
can
B
may
C
might
D
must
推荐题目
-Look at the picture on the wall. It be David's.-Yes, his name is on the first page.
#74614
A
can
B
can't
C
must
D
mustn't
---Must I hand in my exercise book now, Mr. Zhao?---No, you ______. You may give it to me tomorrow.
#76928
A
mustn’t
B
can’t
C
needn’t
D
don’t
——TV and computer are so popular these days.——Yes, they can ____ our eyes to the outside world.
#77015
A
call up
B
open up
C
turn up
D
take up
We _______the letter yesterday, but it didn”t arrive.
#63105
A
must receive
B
ought to receive
C
must have received
D
ought to have received
My sister met him at the street yesterday afternoon, so he __________ your lecture.
#63077
A
shouldn’t have attended
B
couldn’t have attended
C
mustn’t have attended
D
needn’t have attended