仿造例句,用 it 改写句子 Eg : To learn everything is rather difficult. It is rather difficult to learn everything. 1) To master a foreign language is very helpful. 2) To know the main facts is not quite enough. 3) To find Mary back at home made him very happy. 4) To go home from my school takes me half an hour. 2. 翻译 1) He was the student________________( 第一个来上课的 ) 2) We have some difficulties___________( 要克服 ) 3) This is the point_________( 要记住 ) 4) He expressed his desire_________( 访问中国 ) 5) She is the first person__________( 提出这一想法 ) 6) Do you have any questions_______( 要问 ) 7) We need a person___________( 照顾小孩 ) 8) I want to get some books_____( 读 )