题干
将下列句子改为被动语态
(1)I sent a letter to you last month.
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(2) Do we use it for cooking?
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(3) Where did you build the bridge?
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(4) Mother tells me a story every day.
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(5) Can he finish his homework on time?
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答案(点此获取答案解析）
A letter was sent to you last month.,Is it used for cooking (by us)?,Where was the bridge built (by you)?,I’m told a story by Mother every day. / A story is told to me by Mother every day.,Can his homework be finished today?
文化遗产的展示但不利于我国文化遗产的保护
3C(气), 在一定的条件下, 使一定量A和B气体反应, 达到平衡状态时, 具有的性质是: ( )