---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
Michael ______ here to see you and he ______ a note on your desk .
#104622
A
has come ; has left
B
has been ; has left
C
has come ; left
D
has been ; left
They won’t buy new clothes because they＿＿＿money to buy a color TV set.
#104662
A
save
B
are saving
C
has saved
D
were saving
Professor James will give us a lecture on the Western culture, but when and where __________ yet.
#104603
A
hasn’t been decided
B
haven’t decided
C
isn’t being decided
D
aren’t decided
—Have you been teaching here since graduation? —No, I _____ on a farm for five years．
#102826
A
had worked
B
have worked
C
was working
D
worked
—Hi, Susan, where were you at lunch time？I ________ a seat for you in the coffee shop.—Oh, sorry to miss you.My political science class ran longer than usual.
#99574
A
am saving
B
was saving
C
had saved
D
have saved