Question

【题目】— These days, teenagers often have to do what they ________ to.

— It’s not good for their independence. They need to think________.

A.tell; by themselvesB.are told; of their own

C.are told; on their ownD.tell ; for themselves

Answer 1

【答案】C

【解析】

句意：——如今，青少年经常做别人要求做的事情。——这不利于他们的独立性。他们需要有自己的想法。

考查被动语态和介词短语。由题干可知主语they代指teenagers是谓语动词tell的承受者，二者形成被动关系，故用被动语态，其结构为be+及物动词的过去分词，排除A和D。on one’s own=by oneself意为“独立，独自”。故选C。