While watching television, _______.
#98457
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
推荐题目
Yellow Stone National Park, ________in 1872, _________over three million visitors every year, is America’s first and foremost National Park．
#97178
A
establishing, attracted
B
having established, attracted
C
established, attracting
D
being established, attracting
We hurried all the way to the airport , only that the flight had been called off because of the foggy weather .
#93965
A
being told
B
to be told
C
having told
D
to have been told
A year earlier, Amelia had become the first woman passenger ____ across the Atlantic.
#94743
A
fly
B
flying
C
to fly
D
flown
To my surprise,no attention was paid______the text in my class.
#94069
A
to read
B
in reading
C
reading
D
to reading
— You should say sorry to Bob. — Yes, I regret ______ with him.
#93102
A
to quarrel
B
quarrelling
C
quarreled
D
have quarreled