I_______ my homework when the door bell__________.
#39940
A
did, rang
B
was doing, was ringing
C
did, was ring
D
was doing, rang
推荐题目
-- ____ your mother have big eyes?    --Yes, she ____.
#38593
A
Does, does
B
Are, am
C
Do, do
D
Does, is
----______ you ever ________ Tom before ?---- No, I _____ him just two minutes ago.
#39934
A
Did, know ; met
B
Have, known ; have met
C
Have, known; met
D
Did, know; had met
---Is Jim in the office? ---No, he _______ to the dining hall. 
#39371
A
goes
B
would go
C
has gone
D
had gone