23.　 Mr Smith, ___________ of the ________ speech, started to read a novel.

A. tired, boring　 B. tiring , bored　 C. tired, bored　 D. tiring, boring

22.　 _________ time, he’ll make a first-class tennis player.

A. Having given　 B. To give　 C. Giving　 D. Given

21.　 _________ by the beauty of nature, the girl from London decided to spend another two days on the farm.

A. Attracting　　　 B. Attracted　　 C. To be attracted　 D. Having attracted

20.　 The old man, __________ abroad for twenty years, is on the way back to his motherland.

A. to work　 B. working　 C. to have worked　 D. having worked

19.　 Linda worked for the Manufacturing and Mining Company, _________ as 3M.

A. knowing　　 B. known　 C. being known　 D. to be known

18.　 You were silly not _________ your car.

A.　 to lock　 　B. to have locked　 C. locking　 D. having locked

17.　 Laws that punish parents for their little children’s actions against the laws get parents_______.　

A. worried　　 B. to worry　 C. worrying　 D. worry

16.　 Having been attacked by terrorists, ____________.

A. doctors came to their rescue　　　 B. the tall building collapsed　

C. an emergency measure was taken　 D. warning were given to tourists

15.　 The disco, __________ in the studio(录音室)，sounded fantastic at the party that night.

A. recorded　 B. recording　 C. to be recorded　 D. having recorded

14.　 __________ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.

A. To wait　 B. Have waited　 C. Having waited　 D. To have waited