The further falling of the stock market as reported today has ______ a fresh wave of selling.
| A．given off | B．set off | C．put off | D．taken off |
He speaks English as fluently as if he__________an Englishman.
| A．were | B．had been | C．is | D．has been |
Without electronic computers，much of today’s__________advanced technology.
| A．will not have been achieved | B．have not been achieved |
| C．would not have been achieved | D．had not been achieved |
.But for the storm,we__________earlier.
| A．should have arrived | B．arrived |
| C．have arrived | D．shall arrive |
He described the town as if he__________ it himself.
| A．had seen | B．has seen | C．saw | D．sees |
John is so strongly built that he looks as if he __________as elephant.
| A．lifts | B．is lifting | C．lifted | D．could lift |