---Lingling says Miss Yu has gone to Shanghai, _____ that be true?---It _____ be true because I saw her in the office just now.
#74323
A
may; may not
B
must; can’t
C
can; may not
D
may; can’t
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——Can I walk across the road now, mum?——No, you_______. You have to wait until the light turns green.
#75668
A
couldn't
B
shouldn't
C
mustn't
D
needn't
—When I first got to Harvard, my awkward English brought me great trouble.——Oh, dear, it _______a struggle for you to keep up with other students.
#63055
A
might be
B
can be
C
could have been
D
must have been
－__________ can you finish your homework, Ben?－ In thirty minutes.
#77165
A
How far
B
How soon
C
How long
D
How often
A: ________ I go to the airport to see Uncle David off tomorrow morning, mum? B: No, you needn’t. You may join us if you want to.
#74606
A
Must
B
Need
C
Should
D
May