It be the vocabulary that caused you the problem in the exercise because you know a lot of words.
#62254
A
couldn’t
B
may
C
should
D
needn’t
推荐题目
—Look, someone is coming. Guess who ____________.—Jack. He’s always on time.
#78154
A
can it be
B
it can be
C
can he be
D
he may be
--- We want someone to design the new art museum for us.--- ____ the young fellow outside have a try?
#62864
A
May
B
Shall
C
Will
D
Need
---My house is very near a busy street. ---It ________ be very quiet.
#74966
A
can
B
must
C
mustn't
D
can’t
I’m impressed with his determination. When he had a problem to solve, he _____ work at it until he found an answer.
#63610
A
would
B
might
C
must
D
should