—Must I hand in my homework now， Mr.Smith?—No，you ________.
#74206
A
can’t
B
shouldn’t
C
wouldn’t
D
needn’t
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— I can’t get through to the general manager’s office.—The line is busy. Someone ________ the telephone.
#76155
A
must have used
B
could use
C
could have used
D
must be using
—Send me an email when you are free, will you?—________.
#62584
A
I must
B
I will
C
I can
D
I should
---Mum, I hurt my leg when I climbed the tree. --- You ___ that tall tree. I’ve told you many times.
#62682
A
mustn’t have climbed
B
shouldn’t have climbed
C
couldn’t climb
D
may not climb
—Mom, I did not pass the exam.—What a pity! You it.
#62999
A
can pass
B
should have passed
C
must pass
D
must have passed