(2013·高考新课标全国卷Ⅰ)If we________now to protect the environment，we’ll live to regret it.
#99713
A
hadn’t acted
B
haven’t acted
C
don’t act
D
won’t act
推荐题目
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
Maybe if I sicence, and not literature then, I would be able to give you more help.
#102654
A
studied
B
would study
C
had studied
D
was studying
—I didn’t take notes at yesterday’s meeting because I had left my pen at home.—You ________ mine. I ______ it.
#101523
A
must have borrowed; wasn’t using
B
may have borrowed; wasn’t using
C
should have borrowed; hadn’t used
D
could have borrowed; wasn’t using
-----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.
#100851
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish
Lady Wang _____as a secretary for five years in the company, and now she is a general manager of it.
#100066
A
has served
B
serves
C
had been serving
D
served