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
Smoking ______ in the kitchen in my house.
#38298
A
doesn’t allow
B
didn’t allow
C
isn’t allowed
D
won’t allow
You will _______ if you _______ late again, I think. 
#42006
A
punish; will come
B
be punished; will come
C
punish; come
D
be punished; come
Mary isn’t here. She has _______the shop.
#39345
A
been to
B
went to
C
gone to
D
been in
I wonder if he _______ this weekend. If he ______, I’ll let you know.
#42033
A
will come; will come
B
will come; comes
C
comes; comes
D
comes; will come