while加拿大28近500期開獎歷史加拿大28預測結果預測主句和從句的時態加拿大28預測結果首頁 DATE: 2026-06-16 07:43:47
1、句和由when引導的從句時間狀語從句，主句用過去進行時，句和加拿大28近500期開獎歷史從句用一般過去時。從句如：
When he was still a little boy,句和加拿大28預測結果首頁Jack London wrote some compositions which were praised by his teachers.杰克·倫敦還是小孩時，他寫的從句加拿大28預測結果預測一些作文就受到老師的贊賞。
2、句和while通常用在事情同時發生的從句情況，主句和從句都用過去進行時。句和如：
Mother was cooking the meal while i was doing my homework。從句我做作業時，句和媽媽正在做飯。從句
She got married while she was working as a waitress。句和她在飯店當服務生期間結婚了