be up to sth
是：Whatareyoudoing?
whatarewedoingnow?
I am doing sth. eg:I am watching TV.我正在看电视.
你提问就提问,这么激动干什么?那么多感叹号!我在干什么?whatamIdoing?They'remyglasses.对my提问:whoseglassesarethey?Myfatherandmotherwanttowatertheplants.对watertheplants提问:whatdomyfatherandmotherwanttodo?
sb. be in the middle of doing sth.
whatareyoudoing?
I'm doing my homework.
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宅男阳光刺眼
