________ the driver worn the seat belt, he _________now.
| A．Had; would have survived | B．Had; would survive |
| C．Should; would have survived | D．Should; survived |
A survey of opinions of experts _______that three hours of outdoor exercise a week _______good for one’s health.
| A．show; are | B．shows; is |
| C．show; is | D．shows; are |
–Was he praised for his cleverness?
–Not really. _______ was for his hard work.
| A．It | B．As |
| C．That | D．What |
_______much advice his friends gave him, he did exactly what he wanted to do.
| A．Whenever | B．However |
| C．Whatever | D．Whichever |
The ceremony was attended by thousands of film stars, only a small number of_______ went there with the hope of winning an award.
| A．whom | B．those |
| C．them | D．which |
Linda, make sure the tables_______ before the guests arrive.
| A．be set | B．set |
| C．are set | D．are setting |