昨天我在博物馆遇到了我的一个老朋友. (名词所有格)
I met an old friend of mine in the museum yesterday .
你必须做完作业才能出去玩. (before)
You can't go out to play before you finish your homework.
或You must finish your homework befor you go out to play.
她一到达那所学校就受到了热烈欢迎. (the moment)
The moment he arrived that school, he got a warm welcome.
他不耐烦地等着回音 .(impatiently)
He was waiting for the reply impatiently.
你明天打算做什么?(intend)
What do you intend to do tomorrow?
希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问(*^__^*)