20. ----Do you have anything more ______, sir?

----No. You can have a rest or do something else.

A. typing　　　 B. to be typed　　 C. typed　　 D. to type

19. They arrived at their university very late, ______ the gate closely shut.

A. found　　 B. to find　　 C. find　　 D. finding

18. ______ her mother had come, her face lit up.

A. Hearing　 B. Having heard　 C. When hearing D. When she heard

17. They set out ______ for the ______ boy.

A. searching; losing　 B. searching; lost　 C. to search; lost D. to search; missed

16. ______ the room, a letter was laid on the ground.

A. Entering　　 B. Having entered　　 C. He entered　 D. Mrs Green entering

15.　 He spent as much time as he could _____ the child.

A. teaching　　　 B. to teach　　 C. teach　　　 D. for teaching

14. They would not allow him ______ across the enemy line.

A. to risk going　　 B. risking to go　　 C. for risk to go　　 D. risk going

13. I’m examining the composition he has just finished ______ the possible mistakes in it.

A. correcting　　 B. to correct　　 C. corrected　 D. correct

12. The novel is said ______ into many languages.

A. to translate　　　　　　 B. being translated

C. to have been translated　　　 D. having been translated

11. He likes ______, but he doesn’t like ______ today because it is too cold.

A. to swim; to swim　　　 B. swimming; swimming

C. to swim; swimming　　 D. swimming; to swim