——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
---By the way, how many of us can attend the meeting? ---The number of the students to attend the meeting _____ fifty.
#42397
A
is
B
has
C
are
D
have
--- ________ Tom and his mother often watch tennis matches on TV?--- Yes, they ________.
#38692
A
Do; are
B
Are; are
C
Does; does
D
Do; do
—I________ you for a long time. --Oh, I_______ in Beijing. I’ve just come back.
#37537
A
haven’t seen; am
B
didn’t see; will be
C
haven’t seen; was
D
haven’t seen; have been
While the boy ______ down the street, the UFO _____ .
#41890
A
was walking; was landing
B
walked; landed
C
was walking; landed
D
walked; was landing