Mr. Duncan raised an unnecessary question __________ he then failed to find an answer.
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A
to which
B
for which
C
with which
D
by which
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The conference will be put off until next week, _______ we will have made all the preparations.
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A
which
B
in which
C
when
D
on which
Finally we decided to fly to France for the winter holiday on our first stop, ________ we planned to stay for three days.
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A
when
B
there
C
which
D
where
livemocha. com is a free site _______ visitors can not just learn languages but also chat online.
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A
that
B
where
C
which
D
what