Ex 1:Change the active into the passive. 1. You mustn’t use this machine ………………………………………………… 2. Tom will visit his parents next month. ………………………………………………… 3. We must finish the test before ten ………………………………………………… 4. They can’t make tea with cold water.  ………………………………………………… 5. We should clean our teeth twice a day. ………………………………………………… 6.The manager will phone the secretary this morning. .................................

1. This machine musn't be used.

2. Tom's parents will be visited by him next month.

3. The test must be finished before ten.

4. Tea can't be made with cold water.

5. Our teeth should be cleaned twice a day.

6. The serectary will be phoned by the manager this morning.

1. This machine mustn't be used by you.

2. Tom's parents will be visited by him next month.

3. The test must be finished by us before ten.

4. Tea can't be made with cold water by them.

5. Our teeth should be cleaned by us twice a day.

6. The secretary will be phoned by the manager this morning.