12. Good workers are always _____ in the factory.

A. in demand　 　 B. on need　 　　　　　　 C. by request　　 D. for requirement

11. --- How come a simple meal like this costs so much?

　 --- We have ____ in your bill the cost of the teapot you broke just now.

A. added　　 　　　　　　　 B. included　　　 　　　　　　　 C. obtained　　 　 D. charged

10. ____ is known to us all, only the theory ____ practice can be practical.

A. Which, base on　　 B. Which, based on　 　 C. As, based on　 　　 D. As, basing on

9. Scientific experiments ____ students without the teacher’s instructions can be

dangerous.　

A. carry out　 　　　　 B. carrying out by　 C. carrying by　 　 D. carried out by

8. The landlady led the way ________ the tenant around her house.

A. in showing　 　　 B. showing　 　　　　　　 C. into show　 　　 D. showing in

7. Apply some medicine ____ his wound.　

A. on　 　　　　　　　　 B. for 　　　　　　　　　　　　 C. to　 　　　　　　　　 D. in

6. The mother died when the child was born, so it had to be brought up ____.

A. with a hand　 　 B. by hand　　 　　　　 C. by the hand　　 D. at hand

5. They drove along with all the car windows ____.

A. wound up　 　　　 B. winding on　　 　　　 C. winded up　 　 D. wind up

4. They _____ invited if there had been room.　　

A. would have been all 　　　　　　　　　　　　　　　　　 B. would have all been 　

C. all would have been　 　　　　　　　　　　　　　　 D. would all have been

3. Ten ____ the students are absent.

A. per cent of　 　　 B. percentage of　 　 C. per cent　　 　 D. percentage