Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
| A．to do | B．to have done |
| C．to be doing | D．to have been doing |
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 |
Last year John earned _______ his brother did, who has a better position in a bigger company.
| A．twice as many as | B．twice as much as |
| C．twice as more as | D．twice much as |
With his good sense of direction, he _____ quickly and easily get round in the new city.
| A．can | B．must | C．should | D．need |
–– Can you lend me some money now?
–– Sorry, I have _____ left on me now. I must first go and withdraw some of my savings from the nearest ATM.
| A．any | B．some | C．none | D．much |
He no longer lives on campus, for he _____ an apartment within the walking distance to the school.
| A．will rent | B．rented | C．has rented | D．had rented |