Parents should take seriously their children’s requests for sunglasses _______ eye protection is necessary in sunny weather.
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A
because
B
through
C
unless
D
if
推荐题目
Stronger and more lasting memories are likely to be formed ________a person is relaxed．
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A
where
B
unless
C
when
D
although
Those were the graduate assistants ______ to do the research work in the lab.
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A
to whom it was their responsibility
B
whose responsibility there was
C
whose responsibility was
D
of whom with the responsibility
It’s difficult to calculate its price would be if the museum wanted to sell the ancient vase.
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A
how many
B
what
C
how
D
whose
______fashions differ from country to country may reflect the culture difference from one aspect.
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A
What
B
That
C
This
D
Which
London,______ last year, is a nice old city.
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A
that I visited
B
which I visited
C
I visited
D
where I visited