1. He went home after he cleaned the classroom.
He cleaned the classroom before he went home.
2. I will call you as soon as I arrive in Beijing.
3. We can't get off the bus until the bus stops.
希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问,可以详谈嘛(*^__^*)
在线英语考试用括号中所给的词将下列句子合并成为一个含状语从句的复合句1.He went home .He cleanel