初中英语现在完成时专项练习题及答案一、 单项选择。 1、Both his parents look sad .Maybe they _whats happened to him . . knew . have known . must know .will know 2、He has _ been to Shanghai , has he ? . already .never .ever . still 3、Have you met Mr Li _？ . just . ago .before . a moment ago 4、The famous writer _ one new book in the past two year. is writing .was writing .wrote .has written 5、Our coun
