II. Choose the best answer:

1.______ in this kind of campaign many times, these volunteers are experienced in teaching children to read and write. 

A. Taking part

B. Take part

C. Having taken part

D. Taken part

2.______ from the hill, the city looks magnificent.

A. Seen

B. Seeing

C. Saw

D. Having seen

3.______ where to go, he turned to a passer-by.

A. Not known 

B. Not knowing

C. Not to know

D. Not have known

4.______ in her room, she threw a fit.

A. Lock

B. Locking

C. Locked

D. Having locked

5.______ the parcel, I went out at once to post it. 

A. Addressed

B. Having addressed

C. Having addressing

D. To be addressed

6.______ her face in cold water, she came up to the window and shut it.

A. Have washed

B. Washed

C. Had washed

D. Having washed

7.______ as an interpreter for many years in France, she had a good practical knowledge of France.

A. Working

B. Having worked

C. Worked

D. Had worked

8.______ by the journey, he fell asleep.

A. Exhausted

B. Exhausting

C. Exhaust

D. To exhaust

9.______ his pockets with apples, the boys was about to run away when he saw the owner of the garden with a stick in his hand.

A. Having filled

B. Filled

C. Fill

D. Had filled

10.______ at a big seaport, I started to look for a job.

A. Arrived

B. Have arrived

C. Arrive

D. Having arrived

11. He has lived with his cousin for two months, he's looking for a place close to his university. 

A. Living with his cousin for two months, he's looking for a place close to his university.

B. Being lived with his cousin for two months, he's looking for a place close to his university.

C. Has lived with his cousin for two months, but he's looking for a place close to his university. 

D. Having lived with his cousin for two months, he's looking to a place close to his university.

12. After we had chosen a destination for our holiday, we began preparing for the trip. 

A. Chosen a destination for our holiday, we began preparing for the trip.

B. Choosing a destination for our holiday, we began preparing for the trip.

C. Having chosen a destination for our holiday, we began preparing for the trip.

D. Having prepared for the trip, we chose a destination for our holiday.
*Choose and correction:

13. Having sign (A) an agreement to reduce (B) carbon dioxide emissions, we were determined (C) to help reduce (D) global warming.

14. Identified (A) the most urgent environmental (B) problems, they start working out (C) all possible solutions (D).

15. Spending (A) all their saving money (B), they started to do (C) some odd jobs to make ends meet (D).

16. Have cutting (A) down many trees in the area (B), now the people here have to (C) suffer really hot (D) summers.

17. Having been decided (A) to use public transport instead of (B) private transport, we were determined (C) to reduce carbon footprints (D).

18. Cycled (A) to work every day (B), I become more responsible (C) for the environmental issues (D).
19. Annoying (A) by the receptionist's behaviour (B), they decided (C) not to stay (D) in that hotel.

20. Having imported (A) from (B) America, the fruit was (C) expensive (D).