这道题怎么做：根据所给中文或单词写

根据所给中文或单词写出正确的形式： 1. He _________ (重) about four kilograms when he was born. 2. He didn✀t pass the exam because he was too _________ (认真的). 3. He is very young, so he can✀t look after _________ (自己). 4. The doctor saved many people✀s _________ (生命). 5. Do you know that he is fond of _________ (收集) stamps? 6. There are lots of _________ (老鼠) in the old man✀s house. 7. Sandy✀s sister _________ (刷) her cat✀s fur once a day. 8. He wants to be a _________ (科学家) when he grows up. 9. I wanted to see the rainbow after the rain. But it didn✀t _________ (出现). 10. When I woke up at six, I heard somebody _________ (敲) on my door. 11. It✀s _________ (危险的) for you to cross the road when the lights are red. 12. I look forward to _________ (own) a computer. 13. ________ Julie ________ (feed) her pet last night? Yes. 14. Shall we go _________ (row) tomorrow? A good idea. 15. Mr. Wang _________ (find) a job in a big city two years ago.