1 . 我写信向你道歉，希望你能原谅我的不礼貌行为。
I'm writing to apologize to you, __________________.

2 . Some of his careless ________ (行为) led to the loss of the document, so he had to type another one within the limited time. (根据汉语提示单词拼写)

4 . 词性转换
1. behave v. 表现→________________ n. 举止，行为→________________adj.表现得……的
2. confuse v. 使……困惑→________________ adj.令人困惑的→________________ n. 困惑→________________ adj.糊涂的，迷惑的
3. reflect v.显示，反映→________________n. 显示，反映
4. create v. 创造→________________n. 创造性，创造力→________________adj.创造(性)的→________________n．创造，创建
5. intend v. 计划，打算→________________ adj.计划的，打算的→________________ n. 计划，打算
6. recognise v. 认识，辨认出→________________n. 认识，承认
7. base n. 基底，根基，基础→________________adj. (以……)为基础→________________n. 基础，基准，原因→________________adj.基础的，基本的→________________adv.大体上，基本上
8. aware adj.意识到的，明白的，知道的→________________ n. 意识，知道，认识

5 . The teacher speaks highly of the boy’s_______(行为). (根据汉语提示单词拼写)

6 . Biologists are working together to study the _____ (behave) of this family of birds. (所给词的适当形式填空)

8 . I’m sorry for my son’s bad________(behave) at the party yesterday. (所给词的适当形式填空)

9 . When teaching at home or at school, make sure that good ________ (behave) is rewarded. (所给词的适当形式填空)

10 . I want you both to be ________ your best behaviour at Grandad’s birthday party. (用适当的词填空)