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I think he has tried his best to improve his handwriting, 　　　　?
#64514
A
don’t I
B
do I
C
hasn’t he
D
has he
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Mrs. Black doesn’t believe her son is able to design a digital camera, _____?
#65092
A
is he
B
does she
C
doesn’t she
D
does he
       do you go to school, on foot or by bus?
#59983
A
When
B
Why
C
How
D
What
— _______ are they doing?一They are running．
#60260
A
Who
B
Whose
C
What
D
Where6.
I don’t think Ken did such a stupid thing，            ？
#64920
A
do I
B
did I
C
did he
D
does he
 ---- Hey, Mum. _________________?---- I can’t find my wallet. Can you do me a favour and look for it?
#64830
A
What’s on
B
So what
C
Now that
D
What’s up