Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
#4678
A
producing
B
having been produced
C
to be produced
D
produced
推荐题目
Tom ! You _____on the phone just now, but you _____in.
#4552
A
wanted , were
B
are wanted , are
C
were wanted , weren’t
D
called , aren’t
The confidence of the Chinese film makers _______by Avatar, the release of______ has not only set a good example for the Chinese film industry but also embarrassed our directors, who lack professional ethics.
#4807
A
has blown; which
B
have blown; that
C
has been blown; which
D
have been blown; that
American English has changed ________ time. There are several reasons ________ this.
#4632
A
over; for
B
for; with
C
in; of
D
during; about
There were so many attractions in Disney Park. After lunch we came to a place, _______ stood a big tower.
#4959
A
which
B
that
C
/
D
where