______ the sight was impressive on the top of the mountain, I made an effort to climb onto it.
| A．To know | B．Know | C．Known | D．Knowing |
—I’m sure Andrew will come out first in this gymnastic competition.
—I think so. He ______ for it for months.
| A．is preparing | B．was preparing | C．had been preparing | D．has been preparing |
— Had we been more careful, the accident might not have happened.
— But we _____ at that time.
| A．hadn’t | B．didn’t | C．weren’t | D．might not |
It’s reported that by the end of this year the output of cars of the factoryby about 20%
| A．will have risen | B．will be raised | C．will rise | D．will have been risen |
—Tom, it’s time that you _______your own clothes.
—I would rather you _______that for me just like before.
| A．washed; had done | B．wash; have done | C．washed; have done | D．wash; had washed |
—I'm going to the USA.
—How long you there?
A. are; stayingB. are; stayedC. have; stayedD. did; stay