Our neighbor offered to look after our baby yesterday when we were busy, _____is often the case.
#75738
A
it
B
that
C
which
D
as
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He gave us another piece of advice, ________ of great help to the research work.
#77225
A
which I think is
B
which I think it is
C
I think which is
D
I think it is
It never occurred to me you could succeed in persuading him to change his mind.
#78589
A
which
B
what
C
who
D
that
A bank is the place ______ they lend you an umbrella in fair weather and ask for it back when it begins to rain.
#78261
A
when
B
that
C
where
D
there