题目内容
1.1. We should protect e_______ animals.
2. Money is a_______ in some situations.
3. It’s very important to choose a p_______ time to visit friends.
4.He is an o_________ student. He has been abroad for a long time.
5.What is his p_________ in doing this?
1.endangered 2.acceptable 3. proper 4.overseas5.purpose
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