---Don't put the waste on the ground. ---Oh, I'm very sorry. I ________ the dustbin（垃圾箱） there.
#101450
A
don't see
B
isn't seeing
C
didn't see
D
haven't seen
推荐题目
--- I let my secretary call you several times. Do you know that? ---- I _______ in a meeting. I’m sorry.
#103464
A
had been
B
was
C
am
D
have been
----Your job_________ open for your return. ---- Thanks.
#102929
A
will be kept
B
will keep
C
had kept
D
had been kept
The novel written by the author ________ best, but five years ago no one could have imagined how great a role he ________ in the literary world.
#99610
A
sells; was to play
B
was selling; was playing
C
sold; had played
D
is sold; is playing
—What’s that unpleasant noise?—Oh, the road before the main gate .
#102240
A
is repairing
B
is being repaired
C
is repaired
D
has been repaired
--Excuse me, I don't think you can smoke here. ---Really sorry. I ______ this is a non-smoking room.
#101474
A
didn't know
B
don't know
C
have no idea
D
haven't known