. During the reconstruction of the city, many modern tall buildings went up ______ old shabby houses were torn down.
| A．which | B．in what |
| C．in which | D．where |
Time ____ never comes again. So we’d better make full use of our time.
| A．losing | B．lost | C．being lost | D．having lost |
The order came that the enemies ____ in two hours.
| A．would be defeated | B．should defeat |
| C．should be defeated | D．must be defeated |
If it had not been for your help, I ____ the examination.
| A．could not pass | B．would not pass |
| C．would not have passed | D．can not have passed |
I don’t mind her pointing out my mistakes, but ____ is how she does it that I dislike.
| A．this | B．that | C．it | D．which |
The temperature in this mountainous area ___ from day to day.
| A．ranges | B．exchanges | C．varies | D．transforms |