My sister ______ an English teacher in our school. Now she works in America.
#77750
A
was used to be
B
used to
C
used to be
D
used to being
推荐题目
Tom, you ________ leave all your clothes on the floor like this next time. 
#63404
A
mustn’t
B
wouldn’t
C
needn’t
D
may not
— May I park my car here, Sir?  —_________. You may park it over there.
#74702
A
Yes, you may
B
Yes, you can
C
No, you needn't
D
No, you mustn't
There is a “ No smoking “ sign here. You _________ smoke.
#77266
A
can
B
may
C
needn’t
D
mustn’t