1. define the tense and the voice a) the letters have been sent this week. b) yesterday the room was cleaned very well. c) he usually wakes his children up at 6 a.m. d) i shall give advice to you a bit later. e) last year a new house was built near the park. f) football is played almost everywhere. g) a new shopping centre will be built here next year. h) i have just read the text. 2. change the sentences into the passive voice a) they visited that museum last year. b) he will publish his first book in a year. a) they closed the supermarket at 7 p.m. yesterday. b) we often visit disco clubs.

1.

a) The tense of the sentence "The letters have been sent this week" is present perfect.
- The word "have been" is the present perfect form of the verb "to be" in passive voice.
- The word "sent" is the past participle form of the verb "to send".

b) The tense of the sentence "Yesterday the room was cleaned very well" is past simple.
- The word "was" is the past simple form of the verb "to be" in passive voice.
- The word "cleaned" is the past participle form of the verb "to clean".

c) The tense of the sentence "He usually wakes his children up at 6 a.m." is present simple.
- There is no passive voice in this sentence.

d) The tense of the sentence "I shall give advice to you a bit later" is future simple.
- There is no passive voice in this sentence.

e) The tense of the sentence "Last year a new house was built near the park" is past simple.
- The word "was" is the past simple form of the verb "to be" in passive voice.
- The word "built" is the past participle form of the verb "to build".

f) The tense of the sentence "Football is played almost everywhere" is present simple.
- The word "is" is the present simple form of the verb "to be" in passive voice.
- The word "played" is the past participle form of the verb "to play".

g) The tense of the sentence "A new shopping centre will be built here next year" is future simple.
- The word "will be" is the future simple form of the verb "to be" in passive voice.
- The word "built" is the past participle form of the verb "to build".

h) The tense of the sentence "I have just read the text" is present perfect.
- The word "have" is the present perfect form of the verb "to have".
- The word "read" is the past participle form of the verb "to read".

2.

a) That museum was visited by them last year.
- The subject "they" becomes the object "them".
- The verb "visited" becomes the past participle "was visited".
- The active voice "by them" is added at the end of the sentence.

b) His first book will be published by him in a year.
- The subject "he" becomes the agent "by him".
- The verb "will publish" becomes the future simple "will be published".
- The active voice "in a year" is added at the end of the sentence.

c) The supermarket was closed at 7 p.m. yesterday.
- The subject "they" becomes the agent "by them".
- The verb "closed" becomes the past participle "was closed".
- The active voice "at 7 p.m. yesterday" is added at the end of the sentence.

d) Disco clubs are often visited by us.
- The subject "we" becomes the agent "by us".
- The verb "visit" becomes the past participle "are visited".
- The active voice "often" is moved to the beginning of the sentence.