Since then the number of people taking driving lessons ________ 20％.
| A．has increased to | B．increases by | C．has increased by | D．have increased by |
—Jane, I will graduate this June．What advice will you give me?
—Suggest you goyou are most needed and you'll benefit a lot from it．
| A．in which | B．to which | C．where | D．at which |
—Sorry, sir．He ____to a meeting soon．
| A．would go | B．has gone | C．will have gone | D．is going |
The research showed beyond that smoking contributes to heart disease．
| A．reach | B．power | C．doubt | D．problem |
That art center is ____ used to be a factory,_____ millions of cars were made．
| A．what; which | B．where; where | C．what; where | D．where; which |
—Are you going to help him?
—Why ___ I help him? He' s never done anything for me．
| A．would | B．could | C．might | D．should |