— Must they clean and tidy the classroom now? — No, they      . It       after school in the afternoon.
#78237
A
mustn’t; must clean
B
needn’t; must clean
C
mustn’t; need be cleaned
D
don’t have to; can be cleaned
推荐题目
She doesn’t ______ a new dictionary because she bought _____ a week ago.
#77274
A
need to buy, one
B
need buy ,one
C
need to buy ,it
D
need buy ,it
 You ______ to the meeting this afternoon if you have something important to do.
#76011
A
needn’t to come
B
don’t need to come
C
needn’t coming
D
didn’t need coming
--- He worked out such different questions at a very young age.--- Oh, he ______ a very smart student then.
#63131
A
could have been
B
should have been
C
might have been
D
must have been
This book______Tom’s,because his name is on the book.
#74725
A
maybe
B
may be
C
must be
D
must