Most of ______ we call geniuses are successful only because they have made extraordinary efforts.
| A．which | B．that | C．whom | D．what |
We should never _____ ourselves with a little book knowledge only.
| A．convince | B．satisfy | C．comfort | D．benefit |
The substance can be added to gasoline to ______ the speed of automobiles.
| A．quicken | B．shorten | C．loosen | D．enlarge |
It’s hard for the young people to imagine what _____ conditions their parents once lived under.
| A．sincere | B．hard | C．strict | D．tight |
Chinese farmers are mostly living a simple and _____ life as it is today.
| A．miserable | B．economical | C．luxurious | D．sensible |
She can not _____ her husband’s bad temper any more.
| A．tolerate | B．contribute | C．resist | D．prohibit |