I would have attended your birthday party last night but for the fact that it    at that time.
#99331
A
was raining
B
would rain
C
had rained
D
had been raining
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Measures have been taken to prevent the accidents, but much _____ for more improvement.
#101771
A
remains to be done
B
is remained to do
C
remains to do
D
is remaining to be done
—What’s the price of petrol these days?—It ________ frequently since last year.
#99445
A
is arisen
B
increased
C
has been rising
D
has raised