问题描述：
1.Who wants 【 】（下一个说）
2.He will introduce Ms.Liu（对画线部分提问）
【 】【 】he introduce?
3.LiMing has already finished his chart .（改为否定句）
LiMing 【 】finished his chart 【 】.
4.I have taught for ten years（对画线部分提问）
【 】【 】【 】you taught?
2.He will introduce Ms.Liu（对画线部分提问）
【 】【 】he introduce?
3.LiMing has already finished his chart .（改为否定句）
LiMing 【 】finished his chart 【 】.
4.I have taught for ten years（对画线部分提问）
【 】【 】【 】you taught?
问题解答：
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