根据下列句子的结构和所给汉语的意思，写出这一单词的正确形式
People in that city are doing their best to                 (保护) their cultural relics.
I think the biggest environment problem in my country is air                 (污染).
We’ll use up all the coal underground. We have to develop new kinds of             (能源).
What are the                 (优势) of having a mobile phone?
According to the weather report, a snow storm is           (可能的) to come this weekend.
I am just               (好奇的) about what would be the end of the story.
All the teachers thought            (高度) of the boy’s performance at the speech contest.
The painter looked so               (疲倦的) after working for a whole day.
It’s quite difficult to               (说服) my father to give up smoking.
                (渐渐地), he got used to the life abroad.

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