______we were worried about was ________they could manage to control the pollution.
#69123
A
That how
B
That whether
C
What that
D
What whether
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With his work completed,the business man stepped back to his seat,feeling pleased he was a man of action.
#72621
A
which
B
that
C
what
D
whether
Was it from the internet_____you learned the news _____a big fire broke out in the firework factory ?
#72968
A
that ;which
B
that ;that
C
where ;which
D
where ;that
Getting good marks is about _______ to prepare for and to write exams but not just about ______facts you know.
#73226
A
what; what
B
how; that
C
how; what
D
what; which
Modern China is experiencing a completely new period respect for science and creativity has become the guiding principle of society．
#72133
A
which
B
where
C
in which
D
that