摘要： 现在进行时 主动语态:amisare doing 被动语态:amisare being done We are cleaning the classroom now. 我们现在正在打扫教室. The classroom is being cleaned now. 教室现在正在被打扫. A hospital is being built in the centre of the town. 镇中心正在兴建一家医院. Are the babies being taken care of by this nurse 这些婴儿正由这个护士照看吗? How is the new teaching method being tried there 那里是怎样试行这种新教学方法的?

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