The government has taken measures air quality.
#95080
A
to improve
B
improved
C
being improved
D
to be improved
推荐题目
(2013·兰州名校二模)She will tell us why she feels so strongly that each of us has a role ________ in making the earth a better place to live in.
#89060
A
to have played
B
played
C
playing
D
to play
--- What are you busy with? ---The exhibition ____ in the city next week．
#92520
A
held
B
will be held
C
to be held
D
being held
The teacher couldn’t make himself ____ attention to because students were addicted to the short message.
#90725
A
pay
B
to pay
C
paid
D
to be paid