_____ smoking, he would not have got cancer in the lung.
| A．Was he given up | B．Had he given up |
| C．Did he give | D．If he gave up |
The French pianist who had been praised very highly _______ to be a great disappointment.
| A．turned up | B．turned in | C．turned out | D．turned down |
________ fun it is to jump into a pool or go swimming in summer!
| A．What a | B．How | C．How a | D．What |
Out of the crowded bus______, who was dressed in a black suit and waved to a woman..
| A．a tall man in his thirties stepped | B．stepped a tall man in his thirties |
| C．did a tall man in his thirties step | D．did a tall man step in his thirties |
You can either have the double room or the family room,________ you want.
| A．whichever | B．whatever | C．whenever | D．however |
Last month, American scientists started working on _____ project aimed at improving _______ ability to predict earthquake.
| A．the; a | B．a; an | C．the; an | D．a; the |