happen to do ,碰巧做了.happen to doing 碰巧正在做,是,可以
happen to do和happen to be doing
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相关问题
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happen to be doing
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happen to do or happen doing?
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4,happen to do sth
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happened to do when造句
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do you know what happened to her,do you know what she happen
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happen to do sth 不是等于 by chance to do
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Do you know what _____(happen) to them?
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What do you think happened to they?
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sb.happen to do sth.意思辨析
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---What do you think is___to happen to her tomorrow?