In many factories computers have ___________ the work of thousands of workers.
| A．taken place | B．taking place | C．taken place of | D．taken the place of |
Not until ________did he leave.
| A．I came back |
| B．did I come back |
| C．came back I |
| D．came I back |
I _________ in the countryside, but these days I________ in the city.
| A．used to live; am used to live |
| B．was used to living; used to live |
| C．was used to live; used to live |
| D．used to live; am used to living |
Foreigners always __________China with the Great Wall.
| A．heal |
| B．relieve |
| C．combat |
| D．associate |
When it comes to __________ on living expenses, the family always become silent.
| A．cut down |
| B．cuts down |
| C．cutting down |
| D．have cut down |
I like this English song and it ___________ many times on the radio.
| A．has been taught |
| B．has taught |
| C．is taught |
| D．taught |