--Growing population resulted in growing rubbish. --There is possibility that rubbish ________the major threat to human beings.
#100097
A
becomes
B
is becoming
C
became
D
would become
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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