(2013·甘肃兰州名校高三检测)The professor told me to start the research right now, ________ I was sure to fall behind.
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A
or
B
so
C
but
D
and
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I didn’t realize my mistake ________ my teacher had a facetoface talk with me.
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until
B
after
C
since
D
when
You can’t complain of being lonely _______ you don’t make any effort to meet people.
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A
until
B
when
C
once
D
though
Telephone users sometimes complain about unreliable service and they consider unfair charges.
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A
which
B
that
C
what
D
how
It is still under discussion ________the old bus station should be replaced with a modern hotel or not.(2011·重庆)
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A
whether
B
when
C
which
D
where
—What should we pay more attention to if we go north in winter, Mum?—Nothing much. Take warm clothes ______ the weather is cold.
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A
as long as
B
now that
C
if
D
in case