We must send more satellites into space（改为被动语态） More satelli

We must send more satellites into space（改为被动语态） More satelli More _____ satellites must be sent up _____ space. we should learn more english 改为被动语态 将下列句子改为被动语态.1.We must plant more trees this year.2.Can they we are going to plant more trees next year改为被动语态. we need more tents to protect the people in Wenchuan改为被动语态 We use a () to lift man-made satellites into space. we saw him walk into the classroom 改为被动语态 We must water these young trees ofen.(改为被动语态) We must water the flowers everyday改为被动语态 More and more man-made satellites are traveling in space now We must water the flowers every day.(改为被动语态）