_____ we were worried about was _______ they could manage to control the pollution.
#32352
A
That; how
B
That; whether
C
What; that
D
What; whether
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Jeff _______ parents died in the earthquake became a orphan.
#34736
A
which its
B
whose
C
that the
D
that
The entire hall burst into a great cheer and applause ______ the Nobel Prize winner appeared on the stage accompanied by the chairman.
#31765
A
until
B
while
C
by the time
D
the moment
______environmental damage is done，it takes many years for the ecosystem to recover.
#80690
A
Eyen if
B
If only
C
While
D
Once
I had no sooner got back to the kitchen ________ the door-bell rang loud enough to wake the dead.
#80244
A
when
B
than
C
as
D
while
The director thought I was referring to her, in fact, I was referring to the men on duty.
#33052
A
when
B
where
C
which
D
while