. ________ when the boulders suddenly disappeared.
| A．So relieved we felt | B．How relieved we felt |
| C．What a relief we were feeling | D．How we felt relieved |
______ I’m well again, I can go on with my work.
| A．Even if | B．As though | C．Ever after | D．Now that |
The government has to close those small factories to prevent the water of the river ______.
| A．polluting | B．from polluting | C．being polluted | D．polluted |
We agreed to accept ___________ they thought was the best engineer.
| A．whatever | B．whomever | C．whichever | D．whoever |
------Would you mind me smoking here?
------- ______. It’s non-smoking area here.
| A．Yes, go ahead | B．I’m afraid I’ve to say yes |
| C．No, please | D．No, you can’t |
Nuclear science should be developed to benefit the people _____ harm them.
| A．better than | B．more than | C．other than | D．rather than |