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【简答题】
句型转换。 1. Another man-made satellite was sent up into space by them last week. (变主动语态) another man-made satellite into space last week. 2. People there planted many trees last year. (变被动语态) Trees by people there last year. 3. They grow vegetables on the farm. (变被动语态) The vegetables on the farm. 4. Must the old people (speak) to politely? 5. English (speak) in many countries, but the Chinese (speak) their own language.
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