Social attention should be paid our earth from .
| A． to prevent; being polluted | B． to preventing; polluted |
| C． to prevent; polluting | D． to preventing; being polluted |
The stranger isn’t like a worker, nor _____ a salesman.
| A．he is like | B．he looks like | C．does he like | D．is he like |
_____ the football game will be held on time largely depends on the weather.
| A．If | B．That | C．Whether | D．When |
– How long _____ in this job? – Since 1990.
| A．were you employed | B．have you been employed |
| C．have you employed | D．will you be employed |
I regret _____ more time with my grandma before she passed away.
| A．not spending | B．not to spend | C．not spend | D．not have spent |
The film was set in a town _____ is now part of Jiangsu Province.
| A．where | B．which | C．what | D．it |