根据括号部分的提示,写出同类词1、Apples are often【sweet】but

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sour,sour?green,sour?raw,sour?
不过我没有很懂题目的意思,只有一个sweet括号,然后有两个空?有标点吗?
还有同类词指的是什么?
mostly sour?
======以下答案可供参考======
供参考答案1:
1、(Red ) apples are often【sweet】but_green_lemons are _sour_.
2. Apples are often【sweet】but_most_lemons are _sour_.
3. Apples are often【sweet】but_mostly_lemons are _sour_.