Is this research center ________ you visited the modern equipment last year?
| A．where | B．that | C．the one that | D．the one where |
If we can our present difficulties , then everything should be all right .
| A．get away | B．get over | C．get off | D．get on |
The door . Better have it repaired .
| A．isn’t shut | B．hasn’t been shut |
| C．won’t be shut | D．won’t shut |
It is hard for me to imagine what I would be doing today if I in love , at the age of seven , with the library in my hometown .
| A．wouldn’t have fallen | B．should not fall |
| C．had not fallen | D．were not to fall |
—I’m afraid I can’t finish the book within this week.
— .
| A．Please go ahead | B．That’s right |
| C．Not at all | D．Take your time |
It is when the planethat you’d better find out at the book office.
| A．will take off | B．is going to take off |
| C．is taking off | D．takes off |