Ex3.Choose the best answer.

1. ….……. up late is harmful for skin.
A. Staying ​b. to stay ​c. stayed ​d. have stayed
2. ….……. from so much trouble in the life makes her more and more mature than before.
A. Suffering ​b. was suffered ​c. has suffered ​d. suffered
3. Her boss caught him ………. privately in the working time, so he was fired.
A. Speaking ​b. spoken ​c. to speak ​d. was speaking
4. Did you ever finish ………. the office for that new client of yours?
A. To design ​b. designing ​c. designed ​d. having designed

5. ……….. in restaurant as often as they do is very expensive.

A. Being eaten ​b. having eaten ​c. having been eating d. eating

6. She often thinks carefully ……… any question.

A. Before answering ​b. before having answered
B. By answering ​d. having answering

7. ….….., he went into his office to fill in the daily time sheet.

A. Before leaving ​b. before he had left ​c. before having left ​d. when he is leaving

8. ….…… some bad news from her family, she collapsed.

A. When heard ​b. when she has heard​c. to heard ​d. on hearing

9. It is good exercise to walk a mile a day.

A. For walking a mile a day is good exercise ​c. Good exercise is for walk a mile a day

b. In order to walk a mile a day is good exercise ​d. Walking a mile a day is good exercise

10. The man jumped out of the boat. He was bitten by a shark.

A. Bitten by a shark, the man jumping out of the boat.

B. After jumping out of the boat, the man was bitten by a shark.

C. After bitten, the shark jumping out of the boat.

D. After jumping out of a boat, the shark bit the man

11. while the director was guiding us through the museum, he gave us a special explanation.

A. Guiding us through the museum, a special explanation was given by the director

B. Guided us through the museum, the director gave us a special explanation

C. A special explanation was given to us while guiding us through the museum

D. Guiding us through the museum, the director gave us a special explanation.