there (will be) serious air pollution if people use more and
there (will be) serious air pollution if people use more and
-if there are()people driving,there will be()are pollution.-
There will be more pollution in big and c____city.
If there are [ ]people driving, there will be [ ] air pollut
there will be more pollution from now
will there be more pollution?怎么回答
The air will be fresh and clean if we ____rid of pollution.
Now the air pollution in this city ( ) more and more serious
Air pollution is more serious than water pollution.的意思?
Stop riding in cars,or there will be more and more pollution
there will be more and more people 和there will have more and
同义句转换 People will die if there is no air and no water.People