Mary went to the box office at lunch time, but all the tickets __________ out.
#101058
A
would sell
B
had been sold
C
have been sold
D
was selling
推荐题目
It is well known to us all that a lot of rivers _______by factories.
#102816
A
are polluting
B
have been polluting
C
are being polluting
D
are being polluted
Helen ______ her keys in the office so she had to wait until her husband ______ home.
#102080
A
has left; comes
B
left; had come
C
had left; came
D
had left; would come
(2014·江苏盐城二模)Lewin was interested in taking research beyond books and looking at how it could________real social change.
#99133
A
bring up
B
bring about
C
bring in
D
bring out
The performance of the host ,______to please the audience and draw their attention ,was greeted with a cold silence ,however.
#104580
A
had intended
B
intended
C
intending
D
to intend
A new kind of drug ___ ___ to cure H7N9 bird flu by the scientists and they are hopeful that they will succeed in a couple of weeks.
#100007
A
has been developed
B
is being developed
C
is developing
D
has developed