问题描述：
英语问题两个what's tim doing
what's tim doing 是不是 what is tim doing 的简写
如果是 那么 what's tim doing 不就是两个动词了吗 is 与 do
what's tim doing 是不是 what is tim doing 的简写
如果是 那么 what's tim doing 不就是两个动词了吗 is 与 do
问题解答：
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