分析英语重点语句
1.The one who asks fewest questions will win.
2.Since it was early.
3.I felt hungry when I came back.
要求：
1 句子意思
2 句子时态,结构,语法
3 第一句重点解释 who
第二句重点解释 since was
第三句重点解释 felt when came
重点解释这些单词在这些句子中的作用