While watching television，____．
#92243
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
推荐题目
To smoke a cigarette after meals seems to him a habit _________.
#90340
A
to never break
B
never to have broken
C
never to be breaking
D
never to be broken
—Have you seen my English dictionary?—I put it right here just now, but now it’s nowhere ______.
#96820
A
to see
B
being seen
C
seen
D
to be seen
Andrew wanted to find another boy to be his best friend, but Annie told him ___.
#88677
A
not to
B
not to do
C
not do it
D
do not to
After her son died in a car accident, the old lady would sit at the window, ______ out and _______ in thought.
#97224
A
looked; lost
B
looking; losing
C
looked; losing
D
looking; lost
_______ in thought, he almost ran into the car in front of him.
#98610
A
Losing
B
Having lost
C
Lost
D
To lost