4. 解析：选C。included在句中是过去分词性质的形容词，常置于被修饰词之后。

3. 解析：选B。句意为：做任何你被告诉要做的事情。whatever引导名词性从句; no matter what只能引导让步状语从句。

2. 解析：选A。考查find的宾语补足语部分。宾语与宾补之间呈被动关系,故用过去分词，其结构为find+sth.+done。

5. Even if it rains

提升练习

4. provide/supply; with food and clothing

3. heavenly world; lived in harmony

2. To learn; as often as possible

4. travelling　　　 5. envying

5. harmony

4. envy