Question

Answer 1

1 .... too much exhaust fume in the air, more and more people .............

2 ...... cycle carefully

3 ...... be finished by Mary

4 ..... the fine weather, we decide to go camping today

5 ...... about making posters on energy saving?

6 ........ the heavy snow, we couldn't go out for a walk

7 ........ English fluently

8 ........... people go on littering, the environment will become seriously polluted