________ more careful, the work might have been done better.
#70493
A
Being
B
Having been
C
If you had been
D
To have been
推荐题目
Let’s put off the picnic until next week, _____ the weather may be better.
#72584
A
then
B
if
C
as
D
when
If someone falls off the ladder and gets seriously hurt, you’d better leave him _____ he falls and try to get help.
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A
before
B
when
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where
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what
The World Expo 2010 is being held at a time the world is looking for a new kind of balance between nature and cities．
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A
when
B
where
C
which
D
that
______ bright a talker you are, there are time when it’s better to remain silent.
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A
Whatever
B
However
C
Whenever
D
Whoever
It's said to be a case of murder ________ the children were used by adults.
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A
when
B
where
C
which
D
that