Jim is ten years old. One day, his friend Tom says to him, "I am going to have a birthday party on
Saturday. Jim, can you come to my party?" "I'll be glad to," answers Jim. 　　
     Before Jim goes to the party on Saturday afternoon, his mother says to him, "Now, Jim, don't forget
to be polite. Don't ask for food until someone gives it to you." 　　
     "All right, Mum," Jim answers, and he goes to Tom's house on his new bike. Then Tom's mother
gives them some food. But she forgets to give Jim any. He waits politely for ten minutes and then he
holds his plate up in the air and says loudly, "Does anyone want a nice and clean plate?"

1. Who has a birthday party on Saturday?
    _________________________________
2.  What does Jim's mother tell him?
    _________________________________
3.  How does Jim go to Tom's home?
    _________________________________
4.  Why does Jim hold up his plate?
    _________________________________

1. They're used for seeing in the dark. (改为否定句) 
    They                           for seeing in the dark.
2. Liu Weidong wanted to make Xiaoyu happy. (改为一般疑问句)
                 Liu Weidong              to make Xiaoyu happy?
3. The potatoes are too salty. (改为感叹句) 　
                               the potatoes are!
4. Chinese people invented the abacus in the sixth century. (改为被动语态)
    The abacus                           in the sixth century              Chinese people.
5. Jim can clean up parks on Sundays. (就划线部分提问) 
                              Jim clean up parks?
6. We had a great time in Hong Kong last summer. (改为同义句) 
    We                           in Hong Kong last summer.
7. The children have never seen an Indian film,                           (完成反意疑问句)

(1) — Why isn't Jim here? 　　　　　
     — He's busy. He __________ (take) care of his aunt's baby at home now. 　　
(2) — What's Mr. Clarke going to do tomorrow? 　　　　　
     — He'll go fishing if it __________ (not rain). 　　
(3) Linda __________ (make) a lot of friends since she came here last autumn. 　　
(4) — Did Jack finish__________ (clean) the house this morning? 　　　　　
     — Yes, he did. 　　
(5) — Have you heard of the Great Wall, Mr. Read? 　　　　　
     — Yes, I have. It's a place of great interest in China. 　　　　　　　
     It _________ (build) thousands of years ago.