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(2013·济南二模)It was during the Ming Dynasty ________ the Great Wall was repaired and extended to take on the appearance it has today.
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A
when
B
which
C
what
D
that
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 __ __Joe  saw the film ‘ET’ directed by Steven Spielberg ,he made up his mind to turn ____ director ,too
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A
For the very first time; a
B
The very first time; a
C
On the very first time; /
D
The very first time; /
Danby left word _______he would call again in the afternoon .
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A
who
B
that
C
as
D
which
______ is often the case in science, there is no simple answer
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That
B
As
C
When
D
Where
 -Did you reach the US the next day? - No. Somehow . it was three days_______ I arrived there.
#30724
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since
B
when
C
that
D
before
---We’ve seen many more days of blue skies recently. 　 ---True. But back in 1998, ________ Beijing started its “Defending the Blue Sky”　　　　　program, the city only ________ about 100 days a year.　　
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A
which, sees
B
that, saw
C
when, saw
D
and, seeing