while after before when
while after before when
when,while,before,after+________
用after、 before 、if 、when、 while 、as soon as 填空
when,until,after,while,before,because个造一个句子
while,when,until,after,before,as soon as 怎么用?
when while before after as soon as until填空
I arrived at the airport ________(after/while/when/before))
一.选用before,after,until,while,when,as填空
用when,while,as soon as,until,before,after填空
when,while,as soon as,before,after的区别
英语语法,before when\after when
如果句子里有 when before while after这些词语都是时间状语吗