We cannot figure out ______ quite a number of students were infected with the flu.
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A
that
B
when
C
why
D
where
推荐题目
The experiment shows that proper amounts of exercise, if _____ regularly, can improve our health.
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A
being carried out
B
carrying out
C
carried out
D
to carry out
--Are you sure ____ you have seen this man?---Yes, I’m quite sure ___that.
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A
that, about
B
/, to
C
of, about
D
about. of
. _____is known to us all, America is a developed country____ the first world.
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A
As; belonging
B
which; belonged
C
as; belonging to
D
which; belonged to
She will never forget here stay there__________ she found her son who had gone missing two years before.
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A
that
B
which
C
where
D
when
. I am very grateful to my high school teachers, without ______ help I wouldn’t be so excellent.
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A
whom
B
them
C
which
D
whose