Rain is pouring down from the sky without any sign of stopping．Farmers begin to worry about their crops since it _____ as long as 24 hours．
#103320
A
would rain
B
had rained
C
was raining
D
has been raining
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By the time he _____ back last night, we had got 200 pictures of the Chang'e-3 lunar probe.
#99993
A
came
B
had come
C
was coming
D
would come
The Tibetans in the Himalayas for centuries and have adjusted to the conditions at________.
#102472
A
has live; a such great height
B
have live; such a great height
C
has lived; a such great height
D
have lived; such a great height
They _____ on the program for almost one week before I joined them, and now, we ____on it as no good results have come out so far.
#100667
A
had been working; are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working
—Tommy is planning to buy a car.—I know .By next month ,he enough for a used one
#99632
A
saves
B
saved
C
will save
D
will have saved