把下列句子转换成被动语态Where did they buy the new keyboard?_____ _____ the new keyboard _____ ?

把下列句子转换成被动语态Where did they buy the new keyboard?_____ _____ the new keyboard _____ ? 把下列句子改成被动语态,一空一词 . 把下列句子转换成被动语态Did the students turn on the television just now?_____ the television _____ _____ by the students just now? 求英语解答：把下列句子变为被动语态 英语：把下列句子改写成被动语态 把句子改为被动语态 把下列英语句子变为被动语态1、Where did they grow vegetables?2、We must keep the noise under 50 dbs(分贝) here. 将下列句子改被动语态, 情态动词的句子怎么转换成被动语态啊举五个例子,要写出含情态动词的句子,然后在转换成被动语态的形式 初二的被动语态,请把下列句子转换成被动语态（第2、3题写出两种改法）1:We must keep the room clean.2:Lucy sent me a present last term.3:He gove me a new pen.4:Tom saw her swim in the lake yesterday.5:He made me do that for 把下列主动语态的句子改写成被动语态的句子.He will buy a house. 把下列主动语态的句子改写成被动语态的句子.Mr Smith made some tea for hei friends. 把下列主动语态的句子改写成被动语态的句子.He invited me to dinner last night 把下列主动语态的句子改写成被动语态的句子.Someone has repaired the car. 把这些句子改为被动语态 请把句子改为被动语态! 把下面这些句子变被动语态 一个被动语态转换成主动语态的句子When all those present were seated he began his lecture.转换成主动语态