We collected a lot of books to get the necessary information but only half _________helpful, so we failed to finish the work.
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A
is
B
are
C
was
D
were
推荐题目
The best ways to go to this small town ____ by bus _____ by bicycle.
#86238
A
are; or
B
is; and
C
is; or
D
are; and
“39 Steps”is one of the most exciting films_________ directed by my brother.
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A
which were
B
which was
C
that was
D
that were
Clearly, development aid together with food ______ the long-term solution to the problem of poverty.
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A
are
B
is
C
has
D
have