Mary went to the box office at lunch time, but all the tickets ____out.
#104851
A
would sell
B
had sold
C
have sold
D
was selling
推荐题目
All possible means ___ been tried to stop the air______.
#103381
A
has, polluted
B
have, polluting
C
have, being polluted
D
has, being polluted
I'm sorry. I _____________ you__________ to me.
#104802
A
don't know; are speaking
B
don't know ;were speaking
C
didn't know; were speaking
D
didn't know; are speaking
We are trying every possible means to ____ the people who are trapped in the ruins caused by this terrible earthquake.
#101467
A
recover
B
vote
C
rescue
D
guide
With the rise of modern communication tools, handwritten letters ______ by emails.
#100623
A
will replace
B
have replaced
C
are replaced
D
are being replaced
---Has your father returned from Africa yet? ---Yes, but he ____ here for only three days before his company sent him to Australia．
#103213
A
was
B
has been
C
will be
D
would be