题目内容
【题目】When the gatekeeper saw a man (hide) in his room, he called the police.
【答案】hiding
【解析】句意：当门卫看见一个人藏在他的房间里，他报了警。see sb doing sth，看见某人正在做某事。故填hiding。
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题目内容
【题目】When the gatekeeper saw a man (hide) in his room, he called the police.
【答案】hiding
【解析】句意：当门卫看见一个人藏在他的房间里，他报了警。see sb doing sth，看见某人正在做某事。故填hiding。