passive voice
1 People were laughing at him when we got in to the room
->
2 Police were searching the shop when the keeper arrived
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3 you must do your exercises carefully
->
4 He gave me ice-cream
->
5 Many readers use this card-catalogue
->
6 Were they preparing the meeting carefully
->
7 Some one cut down the tree
->
8 People have spoken english in that country since 1776
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9 They hve just done that work when you arrive
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10 They didn't do the work yesterday
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11 The Soviet people had made a lot of preparations before the games started
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12 Pupis must learn english hard
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13 Some one must serve lunch on a train
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14 may we control the city traffic ?
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15 my teacher wil gave a test next week
->
mn giúp mình với