they began to climb the mountain after they had bought all the food and drin

问题描述:

they began to climb the mountain after they had bought all the food and drin

他们开始登山后,他们已买了所有的食物和drin

最后一个单词漏了一个K对吧,
在买好了所有的食物和饮料以后,他们开始登山。

他们买了所有的食物和饮料之后就开始攀登山峰了

他们买了所有的吃的和饮料之后就开始登山了