1．I won't be able to finish the housework without your help．（改为同义句，以下同）

  1 won't be able to finish the housework                         you                       help me．

2．I'm glad that my grandfather is healthy now．

  I'm glad that my grandfather is in                                                    now．

3． Work hard, or you will fall behind others．

                           you                       work hard，you will fall behind others．

4．1 am not sure what I can buy for my mother．

  I am not sure what                          for my mother．

5．如果你上学迟到了，老师将不让你进去。（完成翻译句子；以下同）

                          you are late for school, the teacher                            let you in．

6．那时她靠在街上卖报纸谋生．

  She                          a                           by selling newspapers in the street in those days．

7．昨天我和同学争吵起来，事后我感到很后悔。

  I             my classmate yesterday．After that I felt very sorry．

8．课后我们应多讲英语。

  We should speak English as                     as                         after class．

9．你不应该在阅览室里吸烟。

You                                                           to smoke in the reading-room．

10．请把书拿去给他并把词典给我带来。

Please                       the book to him and                            the dictionary to me．