3 We do not know the active agent e.g. My bag was stolen yesterday. It is not important who the agent is e.g. The room is cleaned every day. It is evident who the agent is. e.g. He has been operated.
4 e.g. We often give her our bike. (Present Simple Active) The bike is often given to her. (Present Simple Passive)
7 I Complete each sentence with a passive verb. 1 Millions of people watch this programme. This programme by millions of people. 2 They will finish our new house by the end of the month. Our new house at the end of the month. 3 They have elected a new president. A new president 4 They are rebuilding a damaged stadium. A damaged stadium 5 United won the cup last year. Last year the cup by United.
8 II Change the verbs in the sentences into Passive. 1 People all over the world speak English. 2 The authorities have opened the new swimming-pool. 3 Someone broke into the flat last week. 4 They are building a new museum in the centre of the city. 5 Someone left the book in the classroom yesterday. 6 They will announce the results of the composition tomorrow.
9 III Underline the errors in these sentences. Rewrite each sentence. 1 Many pet dogs every year. are losing 2 A new bridge across the river now. is be built 3 Last night all the food at the party was ate. 4 The door with false key. unlocked 5 This book by Sam`s father last summer. was writing
10 Choose the correct form of the verb. 1The house many years ago. a) has been built b) was being built c) was built 2 The composition now. a) is being written b) has been written c) is written 3 My bike. a) is stolen b) has been stolen c) was stolen 4 The match at 9 o`clock yesterday evening. a)was watched b) was being watched c) has been watched 5 Some chairs of wood. a) is made b) has been made c) are made
11 Correct the sentences if necessary 1 The window is broken last week. 2 Cheese is made of milk. 3 The apples has been bought already. 4 The letter is written now. 5 The film was being watched at 10 o`clock yesterday.