---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
One of my friends asked me to help him with his lessons this weekend, and thus __ my plan.
#101920
A
ruined
B
ruining
C
to ruin
D
ruins
— What do you think of this kind of TV set, which ＿＿ in Shanghai? — Well, I don’t care such things.
#104415
A
was made
B
is made
C
has been made
D
had been made
Space exploration began in the 1960s, and since then about five hundred people into space.
#101989
A
have traveled
B
traveled
C
had traveled
D
are traveling
—Have you got any job offers?—No. I _________.
#104590
A
waited
B
had been waiting
C
have waited
D
am waiting
—Have the exam results arrived yet?—No. They were due to have arrived at the school today but apparently the exam board them yet.
#101928
A
didn’t post
B
hasn’t posted
C
doesn’t post
D
hadn’t posted