If you have something important to do, you ___ waste any time.
#89049
A
needn’t
B
mustn’t
C
may not
D
won’t
推荐题目
—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.—Oh, dear! She _______ a lot of difficulties!
#89683
A
may go through
B
might go through
C
ought to have gone through
D
must have gone through
If only I _______ your praise then! For, you see, I lost heart and gave up.
#86604
A
have heard
B
hear
C
had heard
D
heard
Richard __________ injured in the car crash，but I didn’t stop him driving after he drank some beer．
#86460
A
wouldn’t have got
B
might not get
C
mustn’t have got
D
should not get
Look! That fellow is too sleepy to work. He ______ up reading until midnight.
#88455
A
mustn’t stay
B
mustn’t have stayed
C
ought not to stay
D
should not have stayed
The parcel was a whole week late. How I wish I ________ air mail instead.
#86492
A
had chosen
B
would choose
C
chose
D
choose