Chuyển sang câu bị động
1. We have to test these products.
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2. How do people prounce this word?
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3. We must do somthing before it’s too late.
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4. People don’t use this dictionary very often.
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5. They have found oil in the Antartic.
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1. These products have to be tested (by us).
2.How is this word pronunced ?
3.Something must be done (by us) before it's too late.
4.This dictionary isn't used very often.
5.Oil has been found (by them) in the Antar.
