Ex: Cahnge the following sentences into passive voice
1.Mr Tuan delivered the speech yesterday
2.Turn off the computer at night
3.I clean the floor every day
4.My mother bought this dress this morning
5.She did this excercise tow days ago
6.They send him abroad to study chemistry
7.Nobody has used this room for a long time
8.Someone has stolen my bike.
9.He has just received a letter from his parents
10.She will buy this house
11.They are building my house
12.Lan was making my new dress at this time yesterday
Ex: Cahnge the following sentences into passive voice
1.Mr Tuan delivered the speech yesterday
=> The speech was delivered by Mr Tuan yesterday
2.Turn off the computer at night
=> The computer is turned off at night
3.I clean the floor every day
=> The floor is cleaned every day
4.My mother bought this dress this morning
=> This dress was bought by my mother this morning
5.She did this excercise tow days ago
=> This exercise was done by her two days ago
7.Nobody has used this room for a long time
=> This room has been used for a long time
8.Someone has stolen my bike.
=> My bike has been stolen
9.He has just received a letter from his parents
=> A letter has been received to his parents by him
10.She will buy this house
=> This house will be bought by her
11.They are building my house
=> My house is being built
12.Lan was making my new dress at this time yesterday
=> My new dress was being made by Lan at this time yesterday
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