—Why is the classroom so dirty?—Sorry，sir. It yesterday, We forgot to do it.
#39874
A
doesn’t clean
B
didn’t clean
C
isn’t cleaned
D
wasn’t cleaned
推荐题目
The Whites ___________ many places of interest since they came to China.
#36345
A
visited
B
will visit
C
have visited
D
visit
— What in Yuyao Ningbo this time yesterday ?—I hear it was raining heavily and soon there was a big flood there.
#38328
A
happened
B
was happened
C
was happening
D
is happening
—What did the teacher say just now?---Sorry. I didn’t catch it. I about something else.
#40093
A
think
B
will think
C
was thinking
D
thinks
--- Tom wants to know_____________. --- I don't know, either. He said he would phone me as soon as he came back.
#38372
A
when Dad comes back
B
when did Dad come back
C
when Dad will come back
D
when does Dad come back