1. 根据句意及首字母或者汉语提示补全单词。

1. （1） The earth is bigger than the m.

3. （2） I want to fly a rocket to travel in s.

5. （3） A shark is a dangerous animals that lives in the （海洋）．

7. （4） My father worked in a （工厂）for five years. But now he is a teacher.

9. （5） If you can swim across the river, I'll be waiting for you on other （边）．

11. （6） Handwriting helps children learn letters and （形状）．

13. （7） Having new ideas means （可能的）inventions and discoveries.