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— _______ are they doing?一They are running．
#60260
A
Who
B
Whose
C
What
D
Where6.
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I’m late for the meeting,      ?
#65233
A
amn’t I
B
aren’t I
C
don’t I
D
aren’t you
Let us ______ out for______, _______?
#65348
A
go; a drive; shall we
B
go; drive; shall we
C
go; a drive; will you
D
to go; drive; will you
— _______   _______do you go to the library?—Twice a week.
#59952
A
How much
B
How many
C
How old
D
How often
---____ do you exercise, Miss Lin? ---Once a week.
#60244
A
How long
B
How often
C
How far
D
How soon
I think that something has to be done to stop the air from being polluted, ______ ?
#64578
A
doesn't it
B
don’t I
C
don't they
D
haven't they