I wouldn't manage to do it___ you had explained how.
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unless
B
until
C
when
D
since
推荐题目
The infrastructure of a country is makes everything run smoothly， including things like transport， irrigation， electricity， postal service， telephones and schools.
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A
that
B
what
C
which
D
as
—So many people there!What happened?—A group of young people fought there.The police arrived,after the situation ecome calmer.
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that
B
which
C
when
D
then
There were no other houses beyond her garden, ________ made it seem like her house lay at the end of the world.
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A
which
B
that
C
where
D
what
Soldiers stood next to a police truck, looking at the crime scene _______ a woman was gunned down in a poor neighborhood of the border city of Iran October 18, 2009.
#71087
A
that
B
which
C
where
D
why
Here are all the books I have.You may borrow _______ you like.
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A
that
B
which
C
however
D
whichever