题目内容

16．I will take time to developalternative （可替代） energy sources．

分析 我将花时间去开发可替代能源．

解答 答案是alternative．名词词组energy sources前面需要形容词修饰．根据题干要求可知用形容词alternative表示"可替代的"．故答案是alternative．

点评 解答此类题目，首先要判断填写的单词词性，然后根据题意填写正确的答案．

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