英语的语法是什么样子的?The young lady watched her daughter having fun playing tennis yesterday afternon.为什么用 having fun playing - When shall we meet?- What about making it at 12:00.为什么用shall而不用will?

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英语的语法是什么样子的?The young lady watched her daughter having fun playing tennis yesterday afternon.为什么用 having fun playing - When shall we meet?- What about making it at 12:00.为什么用shall而不用will?

英语的语法是什么样子的?The young lady watched her daughter having fun playing tennis yesterday afternon.为什么用 having fun playing - When shall we meet?- What about making it at 12:00.为什么用shall而不用will?
英语的语法是什么样子的?
The young lady watched her daughter having fun playing tennis yesterday afternon.
为什么用 having fun playing
- When shall we meet?
- What about making it at 12:00.
为什么用shall而不用will?

英语的语法是什么样子的?The young lady watched her daughter having fun playing tennis yesterday afternon.为什么用 having fun playing - When shall we meet?- What about making it at 12:00.为什么用shall而不用will?
watch sb do something/watch sb doing something.首先,yesterday 表示动作已经完成,afternoon说明是中午这一阶段,用进行时.至于shall和will,两者都能表示将来,但是在此问句中,它表示的是一种征求别人的意见的语气,所以只能用shall

第一个因为是watch sb doing 所以have 用ing形式
第二题表示征求对方意见和建议用青苔动词shall

这个句子貌似是错的……
what shallwedo?强调意愿
what will we do?强调动作