把下列句子变为被动语态.1.someone teaches the use of computer here.2.we use knives to cut the food.3people play football all over the world.4.we tidy our room every day.5.they make paper from bamboo.

求英语解答：把下列句子变为被动语态 把下列句子变为被动语态 The policeman was questioning the thieves at this time yesterday. 把下列句子改成被动语态,一空一词 . 把下面句子变为被动语态.6---9 英语：把下列句子改写成被动语态 把句子改为被动语态 将下列句子变为被动语态he is buying his son a bike now 将下列句子变为被动语态1people speak English in usa 帮个忙明天要考试 She will finish her homework as soon as possible (判断时态：被动语态 否定句 一般疑问句把原句子变为下列时态 即 被动语态 finish--finished--finished否定句一般疑问句 Julie Thompson invented the cars in 1885 (判断时态：被动语态 否定句 一般疑问句把原句子变为下列时态 即 被动语态 invent--invented--invented否定句一般疑问句 Many people speak English in Singapore(判断时态：把原句子变为下列时态 即 被动语态 否定句一般疑问句 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. 把下面句子变为被动语态I will send a message immediately 把句子变为被动语态 My mother often tells me to be careful. 把句子变为被动语态：Mother often tells her children a story at bed time. 把句子变为被动语态：They are serving breakfast between six and nine o'clock. 把句子变为被动语态：Did you finish your composition this morning. 主被动语态“换防”：把主动语态的句子变为被动语态,把被动语态句子改为主动语态.1.the computer was mended by Uncle Wang yesterday.2.You should write the letter in pencil 3.You can look up the word in the dictionary4.M