------________ are you staying in China? ------For about two months.
#70673
A
How far
B
How long
C
How often
D
How many
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His father seldom goes shopping, _______? 
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A
is he
B
doesn’t he
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does he
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isn’t he
__ is really hard __ them to climb Mount Tai. 
#69186
A
This, to
B
It, to
C
This, for
D
It, for
He’s never had seafood,          ?
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A
is he
B
isn’t he
C
hasn’t he
D
has he
Few people knew how to use the Internet in the past,_____?
#68775
A
did they
B
didn’t they
C
did he
D
didn’t he