With a travelling speed of up to 350 kilometres per hour, the railway to be built between Beijing and Shanghai _______ the journey time from 12 hours to 5 hours．
| A．cuts | B．will cut | C．is cutting | D．has cut |
Seldom ________ TV when he studied in senior high school.
| A．he watches | B．he watched |
| C．does he watch | D．did he watch |
Everything，unless otherwise ________，will go on as planned.
| A．stating D | B．states | C．to state | D．stated |
—It's a pity that Andrew didn't want to go to the conference.
—________ willing to go，we could have paid all his expenses.
| A．Had he been | B．Being |
| C．Was he | D．He had been |
—Why do you look so puzzled?
—Oh，I ________ over a most difficult maths problem.
| A．thought | B．have thought |
| C．am thinking | D．think |
—Peter！Let's hurry.The boss is coming.
—Oh，I was afraid that we ________ her.
| A．miss | B．had missed |
| C．will miss | D．have missed |