While watching television, ________.
#90577
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
推荐题目
You cannot accept an opinion________to you unless it is based on facts.(2013·湖南，29)
#88734
A
offering
B
to offer
C
having offered
D
offered
The railway station was overflowing with people _______ back home for the Spring Festival.
#91448
A
to head
B
heading
C
headed
D
head
The bad weather meant__________ the rocket launch or 48 hours,．
#98677
A
delaying
B
having delayed
C
to delay
D
to have delayed
How happy we are! The holiday we have been looking forward _______ at last.
#97451
A
to has come
B
to have come
C
to having come
D
has come
________ by reporters about the case, Mr. Sun said Chongqing takes a clearcut attitude and is taking resolute measures.
#88761
A
Having asked
B
To be asked
C
Asking
D
Asked