—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 Chinese Characters Dictation Contest﹙汉字听写大赛﹚was very popular. There ____ a similar one in our school next Friday. I can’t wait.
#37792
A
will have
B
will be
C
is going to have
D
are going to be
–Have you ever been to Disneyland?–Yes. I ________ there last summer.
#36235
A
will go
B
went
C
have gone
D
was going
---What do you usually do when it is raining?---I often ______ TV.
#39810
A
are watching
B
watch
C
watches
D
watching
While she_____ on the phone, a man walked into her room.
#39787
A
is talking
B
talked
C
was talking
D
talk
Yesterday, the teacher told us that the earth ________around the sun.
#39834
A
moved
B
moves
C
was moving
D
had moved