Water，which seems so simple and common，is________makes life possible.
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A
what
B
that
C
which
D
how
推荐题目
What really worries us is ______ the explorers can accurately locate themselves with the device in case of bad weather.
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A
that
B
where
C
what
D
whether
The boss believed Tom's reason for being late for work is ______ he had to help his grandma cook.
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A
why
B
that
C
where
D
because he
_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable．
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A
Whatever; such
B
However; such
C
However; so
D
Whatever, that
Carl hopes to win the tennis game one day. That is he has been practicing hard.
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A
why
B
how
C
because
D
where
________ made the school proud was ________ more than 90% of the students had been admitted to key universities.
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A
What；because
B
What；that
C
That；what
D
That；because