一、根据句意及所给的汉语提示，写出正确的单词。
1. The river is about 6,300 (千米)long(长).
2. He is (喂养)animals on his grandpa’s farm.
3. She is (发狂地)falling in love with English.
4. He has (几个)hobbies, including(包括)reading and painting.
5. I hope you can (认出)me when I meet you in your school.

1. kilometres 2. feeding 3. madly 4. several 5. recognise

二、根据句意，用括号中所给单词的正确形式填空。
1. I (research)pigeons for my science project now, and their abilities are truly amazing!
2. Right now, I am watching a pigeon recognise (it)in a mirror—it keeps pecking(啄)at its reflection!
3. My teacher says pigeons never get lost, even after flying several (kilometre), which surprises me.
4. Some classmates think pigeons are (bore), but I am discovering how clever they really are.
5. A girl is feeding pigeons in the park, and they are flying (mad)around her—it looks fun, not scary!
6. I regret my first (decide)to ignore them because now I see their incredible skills.
7. My friends (support)my project, and we are even designing a small experiment to test their memory.
8. Maybe pigeons can help in (medicine)emergencies like they did in the past—what a bright idea!
9. Science is all about change, and this project (be)making me see the world differently.
10. No (wonderful)scientists love studying animals—there’s always something new to learn!

1. am researching 2. itself 3. kilometres 4. boring 5. madly 6. decision 7. support 8. medical 9. is 10. wonder