Chuyển câu chủ động sang câu bị động

5. Lan has opened that box in the party for two hours.

6. Everybody was reading books in the library at 2p.m yesterday

7. They will produce five million bottles of champagne in France next year

8. He had bought a new car before he bought a house

9. People have introduced a new style of jeans in the usa

10. Someone has invited her to the party since last night.

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