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Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it,        it?
#64705
A
isn’t
B
is
C
won’t
D
will
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---______ did you first skate?             ---Two years ago.
#59890
A
What
B
When
C
Why
D
How
A Kangaroo scarecely knew anything about it, __?
#65294
A
didn't we
B
doesn't he
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did he
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does he
—          do you exercise?— Twice a week.
#59848
A
How long
B
How many
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How often
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How soon
________ you ________  free next Sunday?
#60393
A
Will ; are
B
Will ; be
C
Do; be
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Are ; be
--       you ever       Dali?                                         --Never. But I am going there this vacation.
#60386
A
Do…go to
B
Have...bean to
C
Have…gone to
D
Will…go to