giúp mk! chuyển chủ động sang bị động: 1. How do people pronounce this word? --> 2. We must do something before it's too late --> 3. people don't use this dictionary very often. --> 4. they have found oil in the Antarctic --> 5. someone gave Mary this present an hour ago. --> 6. Has some one repaired this telephone? --> 7. they told me that your teacher was sick. --> 8. people must not take their cameras inside the factory. -->

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