题目内容
9. The activity, (design) to improve the teenagers' social skills,turned out to be helpful.
9. designed be designed to do sth"被设计来做某事",用过去分词形式作定语修饰activity。
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题目内容
9. The activity, (design) to improve the teenagers' social skills,turned out to be helpful.
9. designed be designed to do sth"被设计来做某事",用过去分词形式作定语修饰activity。