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
推荐题目
The factory produces two million pairs of shoes every year, half _______ are sold abroad.
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A
of which
B
which of
C
of them
D
of that
The Libians will never forget Oct. 20, 2011, ____ Gaddifi was killed in Sirte, ____ shocked the whole world..
#78248
A
that; which
B
when; which
C
which; when
D
that; that
He is the only one of those clerks ________ to the important conference.
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A
who was inviting
B
who were invited
C
who has been invited
D
who have been invited.
John invited approximately 40 guests to his wedding, most of _______ are family members.
#75884
A
whom
B
that
C
them
D
which
The science of computer,____ rapid progress has been made, is the most important of all.
#77877
A
to which
B
from which
C
in which
D
of which