（湖南省怀化市2014年高三第二次模拟考试）21. For more information, please send an e-mail, ______ you can also include your advice to us.
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A
when
B
where
C
which
D
that
推荐题目
He tried his best to solve the problem, _______ difficult it was.
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whatever
B
however
C
whichever
D
wherever
People are recycling many things which they away in the past.
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had thrown
B
will be throwing
C
were throwing
D
would have thrown
― Who are you waiting for? ― _______ the man wounded in the left leg.
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The doctor will operate on
B
The nurse to be looked after
C
The doctor to operate on
D
His brother got
We would like to drop in at your house if ___________
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you are convenient
B
it is convenient of you
C
it is convenient to you
D
you will be convenient