While watching television, ________.
#68458
A
the doorbell rang
B
the doorbell was rung
C
we heard the doorbell ring
D
we heard the doorbell rings
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—Did Jack come back early last night?—Yes,it was not yet eight o’clock_______he arrived home.
#72308
A
why
B
when
C
that
D
which
------ The authors of computer viruses are geniuses.------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.
#69518
A
in which
B
through which
C
on which
D
from which
He'll never say a word about it ___ you have explained it to him.
#71667
A
once
B
before
C
on order that
D
so that
Evidence has been piled up ________ drinking water after getting up in the morning contributes to one's health.
#67192
A
what
B
which
C
if
D
that