We should think of ways to stop the waste from the factory _____ our living environment. 
#97826
A
being polluted
B
polluting
C
from being polluted
D
Polluted
推荐题目
More than 10,000 relics, ____ between 5,000 to 3,000 BC, ____ at Sanxingdui since it was first discovered.
#97136
A
dating back to, was dug up
B
dating back to, have been dug up
C
dated back to, has been dug up
D
dated back to, were dug up
The boys, ______ this frightening person, lost their tongues. 
#96117
A
face
B
having faced
C
facing
D
faced
Tell Mary there is someone __________ for her at the door.
#88256
A
wait
B
to wait
C
waiting
D
waited