---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
Although the causes of cancer ________, we do not yet have any practical way to prevent it．
#103264
A
have uncovered
B
have been uncovering
C
are uncovering
D
are being uncovered
Mrs. Black would rather his husband did some housework when he’s free, but he _______.
#103537
A
wouldn’t
B
didn’t
C
doesn’t
D
wasn’t
I don’t believe you’ve already finished reading the book — I ______it to you this morning!
#104960
A
would lend
B
was lending
C
had lent
D
lent
--- What’s your answer, Alice? --- Sorry, I ____ to you. Could you please repeat your question, Mrs Black?
#103736
A
am not listening
B
wasn’t listening
C
haven’t listened
D
won’t listen