All possible means ____ to prevent the air pollution, but the sky is still not clear.
#100326
A
is used
B
has been used
C
are use
D
have been used
推荐题目
．Although it in the desert most of the year, people still live there．
#102773
A
doesn’t rain
B
didn’t rain
C
hasn’t rained
D
hadn’t rained
I’m afraid I won’t be available then. I _____ a friend off at 3:00 this afternoon.
#100822
A
see
B
am seeing
C
will see
D
will be seeing
— What do you think of this kind of TV set, which ＿＿ in Shanghai? — Well, I don’t care such things.
#104415
A
was made
B
is made
C
has been made
D
had been made
--Were you late for the film? --Very late. Half of it by the time we the cinema.
#99544
A
was shown; reached
B
had been shown; reached
C
was shown; had reached
D
had been shown; lad reached
The Diaoyu Islands _____ in Chinese maps since the 14th and 15th centuries.
#100503
A
have been included
B
had been included
C
were included
D
are included