Over the past decades, sea ice _______ in the Arctic as a result of global warming.
#104854
A
had decreased
B
decreased
C
has been decreasing
D
is decreasing
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I need one more stamp before my collection ______. (MET1994 )
#104331
A
hascompleted
B
completes
C
hasbeencompleted
D
iscompleted
What will people die of in 100 years? If you think that is a simple question, you ______ attention to the revolution taking place in biotechnology．
#101602
A
have not been paying
B
had not been paying
C
were not paying
D
will not be paying
---- An ant has two stomachs --- one for itself and the other for others. ----Really? Quite interesting. I ________ anything about it.
#102385
A
don’t know
B
hadn’t known
C
haven’t known
D
didn’t know
–More than 13.7 million Americans were unable to find work in July.--Yeah, most jobs for months.
#101590
A
are seeking
B
sought
C
have been seeking
D
had been seeking
—Doug, where is your coach, Chow?—See, he ______ by a group of journalists.
#101667
A
is being interviewed
B
has been interviewed
C
is interviewing
D
has interviewed