The research also raises the question ________ children from low-income, less educated families need earlier aid.
#30377
A
what
B
that
C
when
D
whether
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He told me that he would remember the days in Beijing University forever____ he got much help there from Professor Zhu.
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where
B
which
C
that
D
when
Yao Ming has retired from the NBA, the pleasure we have got by watching him play basketball at home and abroad will last long．
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Although
B
If
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'Since
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Students are required to go out in couples, especially in the evenings, with friends ______ they get into trouble.
#30775
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even if
B
if only
C
in case
D
when