题目内容

Even now there are still some natural (phenomenon) ________ can not e explained.

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There is a lot of (pollute) ________in the air, because a chemical factory is near here.

She (possess) ________ of a wonderfully calm temperament.

There is a (possible) ________ that I may go to Shanghai next week.

He is a (practice) ________ person. He has never been interested in theory.