Light-to-moderate smokers were ________ to die of sudden heart problems than those who had never smoked.
| A．as twice likely | B．twice more possible |
| C．twice more likely | D．as twice possible |
Whenever I enter the library, I see himat the back of the library reading.
| A．sit | B．sat | C．seating | D．seated |
This sweater fits me, but I can’t afford to buy. I have to choosewhich is cheap enough for me.
| A．it; that | B．that; it |
| C．it; one | D．that; the one |
People are living in world where mouse clicks rule our life, so online searches have become _______must.
| A．the; / | B．/;a | C．a; a | D．a; the |
My friend has returned from the UK. Sheat Oxford for four years, during which we communicated with each other on the Internet.
| A．studied | B．has studied |
| C．had studied | D．has been |
Mr. and Mrs. James feel more comfortable on a ship than they would do if they _________ any other way．
| A．travel | B．are travelling |
| C．have travelled | D．travelled |