1. Another man-made satellite was sent up into space by them last week. (變主動(dòng)語(yǔ)態(tài)) 
                                           another man-made satellite into space last week.
2. People there planted many trees last year. (變被動(dòng)語(yǔ)態(tài)) 
   Trees                           by people there last year.
3. They grow vegetables on the farm. (變被動(dòng)語(yǔ)態(tài)) 
    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.