In China, the needle treatment dates __ ancient times.
| A．from | B．back to | C．back from | D．both A and B |
The waterfall can be seen _ __. Its sound may be heard __ two miles. It looks even more beautiful____.
| A．at a distance; in a distance of ; from a distance |
| B．from a distance; in the distance of; at a distance |
| C．in the distance; from a distance; at a distance |
| D．in the distance; at a distance of; from a distance |
. After the war, a new school building was put up __ bad once been a theatre.
| A．in which | B．where | C．where it | D．where there |
The most of his time is ____ to prepare for the college entrance examination.
| A．used | B．spent | C．taken | D．made |
. The other day, my friend John drove his car down the street at I thought was a dangerous speed, and ____ surprised everyone in the car.
| A．which; that | B．which; it | C．as; which | D．what; that |
--- How did you pay the workers? --- As a rule, they were paid ______.
| A．by hour | B．by the hour | C．by hours | D．by an hour |