English is required in many schools of our country.在我们国家许多学校要求开设英语课。(强调动作的承受者English.)C. 千万不能按中文意思死搬硬套,如句子“你的信我已经收到了。”不能说:Your letter has been received by me .只能说:I have received your letter.D. 主动语态变为被动语态的步骤 1。找出主动语态的宾语,作为被动语态的主语;2。将谓语动词有主动形式变为被动形式;3。有无必要用 by 短语。4。注意被动语态的句式,时态必须主动语态一致。