While watching television, ____.
#96009
A
the doorbell rang
B
we heard the doorbell ring
C
there was someone knocking at the door
D
the doorbell was ringing
推荐题目
—Is Bob still performing?—I'm afraid not.He is said ________ the stage already as he has become an official.
#89171
A
to have left
B
to leave
C
to have been left
D
to be left
When ____ to feel unworthy, children often work extra hard to please their parents．
#96107
A
to make
B
making
C
made
D
having made
(2013·济南模拟)I found Jane________at the desk，________her homework carefully.
#88432
A
seated；doing
B
sitting；does
C
be seated；does
D
sit；do
He appears ______ a long time. He is impatient for my arrival.
#98566
A
to wait
B
to be waiting
C
to have waited
D
to have been waiting
No matter how frequently _______, the boy was always in low spirits.
#96386
A
encouraged
B
encouraging
C
to be encouraged
D
was encouraged