Among the many dangers_________-- sailors have to face, probably the greatest of all is fog.
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A
which
B
what
C
where
D
when
推荐题目
A 7-year-old boy received an operation on Tuesday successfully _______ he has many other health problems.
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A
since
B
however
C
though
D
therefore
Tim is in good shape physically he doesn't get much exercise.
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A
if
B
even though
C
unless
D
as long as
We should consider the students’ request _____ the school library provide more books on popular science.
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A
that
B
when
C
which
D
what
Every family in America has had this sort of experience there was a price increase of nearly one-third in the past two years
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A
that
B
which
C
what
D
when