问题描述：
请问：1.when do you want to leave?和when were you thinking of leaving?有什么区别
还有
2.i hope you can give me a window seat和i was hoping you could give me a window seat.
3.do you want a direct flight?和were you looking for a direct flight?
这些句子怎么区别,有什么语法,怎么理解.
还有
2.i hope you can give me a window seat和i was hoping you could give me a window seat.
3.do you want a direct flight?和were you looking for a direct flight?
这些句子怎么区别,有什么语法,怎么理解.
问题解答：
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