根据句意和所给的中文提示，写出句子中的单词。
Could you tell me the ________________ (高度) of Qomolangma?
It is well known that the Diaoyu Islands ______________ (属于) to China.
People who eat a balanced diet should be ______________ (健康) than those who only eat biscuits and hamburgers.
The customs in Qingdao are ________________ (相似的) to those in Yantai.
Tom _______________ (准备) for the final exam. Please be quiet!
B. 根据句意，用所给单词的适当形式填空。
He ________________ (be) a volunteer in Ya-an, Sichuan since the earthquake happened.
Mr. Jiang is a learned person, and he has lots of ________________ (know).
The little girl is very kind and she always talks to people ______________ (polite).
All the ______________ (village) living conditions have greatly in recent years.
My teacher did what he could _______________ (make) his class lively.