Social attention should be paid ____ our earth from ____.
| A．to preventing; being polluted | B．to prevent; polluting |
| C．to prevent; being polluted | D．to preventing; polluted |
Not only _____ a promise， but also he kept it.
| A．did he make | B．he made | C．does he make | D．has he made |
_____ and caught the mouse.
| A．Up the cat jumped | B．The cat up jumped |
| C．Up jumped the cat | D．Jumped up the cat |
You should work less _____.
| A．and neither should I | B．and so should I |
| C．and nor should I | D．and so I should |
_____ ， 1 would accept the invitation and go to the party.
| A．Were I you | B．Was I you | C．Had I been you | D．Would 1 be you |
—— Have you ever seen anything like that before？
---- ____.
| A．No，I never have seen anything like that before |
| B．No，never I have seen anything like that before |
| C．No，never have 1 seen anything like that before |
| D．No，I have seen anything like that before never |