Every possible means ________ to prevent the air pollution，but the sky is still not very clear.
#85546
A
were using
B
have used
C
has been used
D
was used
推荐题目
---- Have you heard that Tom, as well as his parents, _____ moved to Beijing?---- Really? No _____ I haven’t seen him for a long time.
#85746
A
have; doubt
B
has; wonder
C
have; wonder
D
has; choice
----______ he have a tennis ball ? ---- No, he _________.
#43717
A
Do; doesn’t
B
Does; do
C
Does; doesn’t
D
does; does
There ______ a sports meeting in our school next week.
#44095
A
will be
B
will have
C
are going to be
D
is going to have
I think ______ of the materials I listened to at the beginning of the exam ______ easy.
#44317
A
three fourths, is
B
third four, are
C
three fourths, are
D
three fourth, are
Between the two lectures _____ a break, _______ the audience can buy ice cream.
#85555
A
is; when
B
are; when
C
are; which
D
is; which