-- Is it your brother playing football outside? -- It ________ be him. He is helping mother with dishes now.
#76128
A
must
B
can’t
C
mustn’t
D
can
推荐题目
——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