Some scientists believe that         is no doubt         a cure for AIDS will be found.
#93048
A
it; that
B
it; whether
C
there; that
D
there; whether
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She never laughed,_________ lose her temper.
#91965
A
or she ever did
B
nor did she ever
C
or did she ever
D
nor she ever did
While watching television,         .
#93690
A
the doorbell rang
B
we heard the doorbell ring
C
there was someone knocking at the door
D
we heard the doorbell rung
The manager promised to keep me_______ how our business was going on.
#92876
A
informing of
B
informed of
C
to inform of
D
on informing