Air bags for cars were invented _____ lives. Without them more people would be injured in car accidents.
| A．saving | B．saved | C．to save | D．to have saved |
The traffic is not busy now. We arrive before dark.
| A．should | B．mustn’t | C．need | D．can’t |
— It will be terrible to see the nuclear war happen between U.S and Iran.
— That’s right. Nuclear science should be developed to benefit the people ___ harm them.
| A．more than | B．rather than | C．other than | D．better than |
I’m not ill. __________, I ’m very healthy.
| A．However | B．On the contrary | C．Thus | D．Instead of |
— Could I use your computer for a few moments, please?
— __________. I’m not using it myself.
| A．Come on | B．It depends. | C．Go ahead | D．That’s great. |
–What’s that noise?
–Oh, I forgot to tell you. The new machine ______.
| A．was tested | B．will be tested | C．is being tested | D．has been tested |