Replace the attributive clauses by the Participle.

Model: All the people who live in this house are students. – All the people living in this house are students.

1. The man who is speaking now is our new secretary. 2. The apparatus that stands on the table in the corner of the laboratory is quite new. 3. The young man who helps the professor in his experiments studies at an evening school.
4. People who take books from the library must return them in time. 5. There are many pupils in our class who take part in the perform­ance.

Replace the adverbial clauses of time by the Participle.

Model: When you speak English, pay attention to the intonation. – (When) Speaking English, pay attention to the intonation.

1. Be careful when you are crossing a street. 2. When you are leaving the room, don't forget to switch off the light. 3. When you begin to work with the dictionary, don't forget my instruc­tions. 4. When they were travelling in Central Africa, the explorers met many wild animals. 5. When you are copying English texts, pay attention to the articles. 6. You must have much practice when you are learning to speak a foreign language.

Replace the italicised adverbial clauses of time by the appropriate form of the Participle using the model.

Model:

1. When I entered the room,I at once felt some change in the atmosphere.
2. When we had finally reached the river,we decided to stay there and wait for the others. 3. When I reached out in the darkness,I felt a stone wall where I expected to find the door. 4. When she opened the parcel,she saw a large box of pencils. 5. When they had finally opened the safe,they found that most of the papers had gone. 6. When she closed the suitcase,she put it on the bed. 7. When she had closed and locked the suitcase,she rang for the porter to come and take it downstairs. 8. When she had cut the bread,she started to make the coffee.

Replace the italicised adverbial clauses of time by the appropriate form of the Participle using the models.

Model 1:

Model 2:

1. As she had been walking most of the night,she felt tired and sleepy. 2. When I take a child to the circus,I always know I'm going to enjoy myself. 3. As I had never seen anything like that before,I was eager to see the performance.
4. When he had passed the last examination,he began to look round for a job.
5. When he had drunk his second cup of coffee,he folded the newspaper and rose. 6. Whenever she spoke on the subject,she was liable to get all hot and bothered. 7. When I had finally made up my mind,I told my parents about my new plans. 8. As she had spent most of her housekeeping money,she reluctantly decided to go home. 9. As she had not had any lunch,she wanted her tea badly. 10. When I spoke to her I always tried to make my meaning clear. 11. When we were playing chess that evening,we kept watching each other. 12. When she had taken the children to school,she could go and do her weekly shopping.

Complete the sentences, using suitable constructions.

1. Did anyone see you...?

2. I hope your friend didn't hear you...

3. A huge crowd watched the firemen...

4. We could feel the sun...

5. "Don't worry!" said the doctor. "I'll soon have you..."

6. You must have been very late last night. I didn't even hear you...

7. The pickpocket was observed...

8. High on the mountain, he could perceive three small figures...

9. I searched the desk, and discovered the letter...

10. The woman caught her husband...

11. Leave the car with me. I'll have it...

12. I was asked if I had noticed anyone...

13. When his leg was examined, it was found...

14. Where's my umbrella? I thought I left it...

15. Although the station was crowded, I soon spotted my friend...

16. The assistant kept the customer...

17. The iron's far too hot! Can't you smell the material...?

18. I hope they won't keep us...

19. They found the survivors...

20. We all suddenly sensed danger...

Fill in the blanks with the appropriate forms from the right column.

Open the brackets using the appropriate form of the Participle.

I. 1. She went to work, (leave) the child with the nurse. 2. (lay) down on the soft couch, the child fell asleep at once. 3. (wait) in the hall, he thought over the problem he was planning to discuss with the old lady. 4. He left (say) he would be back in two hours. 5. (write) in very bad handwriting, the letter was difficult to read. 6. (write) his first book, he worked endless hours till dawn. 7. (spend) twenty years abroad, he was happy to be coming home. 8. (be) away from home, he still felt himself part of the family. 9. (not / wish) to discuss the problem, he changed the conversation.

II. 1. (reject) by the publisher, the story was returned to the author. 2. (reject) by publishers several times, the story was accepted by a weekly magazine. 3. (wait) in the reception room, he thought over what he would say. 4. They reached the peak at dusk, (leave) their camp with the first light. 5. The friends went out into the city (leave) their cases at the left-luggage department. 6. (leave) a note with the porter, he said he would be back in a half-hour. 7. (write) in an archaic language, the book was difficult to read. 8. (write) his first book, he used his own experiences. 9. (be) away so long he was happy to be coming back.

Fill in the blanks with Passive Participles of the verb in brackets.

1. a) I cannot forget the story ... by him. b) They listened breathlessly to the story ... by the old man. (tell) 2. a) One can't fail to notice the progress ... by our group during the last term. b) These are only a few of the attempts now ... to improve the methods of teaching adult students, (make) 3. a) We could hear the noise of furniture ... upstairs. b) For a moment they sat silent ... by the story, (move) 4. a) The monument ... on this square has been recently unveiled. b) The monument ... on this square will be soon unveiled, (erect).