把下面几句英文转化为被动语态 （1）I will see panda next we

we will plant many trees next year (变被动语态）many trees ( )( )( We will buy a n-ewcar next yea-r（改为被动语态） 将下列句改被动语态1．I will send a message immediately.2.We must sell 改为被动语态:1I will send you a letter next week .2 把下面句子变为被动语态I will send a message immediately （What shall we do next ）被动语态怎么改? 几句被动语态 请把原句改成被动语态 怎么将“We will have an English test next Friday.”改为被动语态? We will set up a now comping next year变成被动语态 英文,把下面这句话变成被动语态, 几句初二英文句子,改为被动语态.急! We will visit the Great Wall next week,这句可以改被动语态吗?如果可以的话要怎么改