把下列句子改成被动语态：I have learned English for about two years

把下列句子改成被动语态：I have learned English for about two years 把下列句子改成被动语态,一空一词 . 把下列句子改成被动语态We can't exchange articles which customers have bought during the sale 句子改成被动语态 i have bouyht some books for my brother 如何把Have的疑问句改成被动语态 把下列句子改为被动语态4、The workers have alreadly built a bridge 将下列句子改成被动语态people have done something useful to protect the wild animals already 把主动语态改成被动语态 把下列句子变成被动语态:I can’t repair the broken kite. 把下列一般现在时句子改成被动语态 The boss make the workers work把下列一般现在时句子改成被动语态The boss make the workers work for 14 hours a day.I often see the boy climb the walls of the school.My mother also buys me 把下列一般现在时句子改成被动语态 The boss make the workers work把下列一般现在时句子改成被动语态 The boss make the workers work for 14 hours a day. I often see the boy climb the walls of the school. My mother also buys 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 改成被动语态：They have offered me. 把句子改为被动语态 帮我把一句英语句子改成被动语态的.What made them so worried?改成被动语态的句子,还是要疑问句的不要改成陈述句. 英语改句式把下列句子改成被动语态： 1.They often clean their classroom after school. 2.Li Lei gave Tom a new pen last week.3.A lot of people in China can speak English now.4.I have learned EEnglish for about two years.5.They will publ 帮我把下列英语句子改成被动语态形式的1.They are making machines in that factory.2.How many desks will they buy next term?3.I have asked her to help you.4.She will send me a nouel next week.5.The story made us laugh.6.We saw them comi