How long do you think it will be _______ scientists succeed in providing a cure for cancer?
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A
when
B
after
C
since
D
before
推荐题目
Many countries, for example, Mexico and Japan, _____a lot of earthquakes.
#95026
A
have
B
having
C
to have
D
having had
— Oh, Rose. ______ you gave us!— Really?
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A
How a pleasant surprise
B
How pleasant a surprise
C
What pleasant surprise
D
How pleasant surprise
These houses are sold at such a low price _______ people expected.
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A
like
B
as
C
that
D
which
______________in his school that many of his fans want to get close to him．
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A
So is he popular
B
So popular is he
C
So popular he is
D
So he is popular
Thomas _____ in inventing many electrical machines
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A
was successful
B
succeed
C
was success
D
successes