——Why is the classroom so dirty?——Sorry, Sir. It _____ yesterday. We forgot to do it.
#41937
A
doesn’t clean
B
didn’t clean
C
isn’t cleaned
D
wasn’t cleaned
推荐题目
---Has Tom finished his homework?---I don’t know. But he _________ it the whole morning.
#41725
A
did
B
does
C
was doing
D
is doing
There ______ great changes in our hometown in the past fifteen years.
#41872
A
has been
B
have been
C
was
D
were
——Did you go to Jack’s birthday party? ——No, I _________.
#39542
A
am not invited
B
wasn’t invited
C
haven’t invited
D
didn’t invite
The door is __________.Who ______ it?
#42718
A
open; opened
B
open; open
C
close; closed
D
closed, close
—Excuse me, Mum. When can we have dinner? —Not until it in half an hour.
#36824
A
is prepared
B
has been prepared
C
will be prepared
D
was prepared