题目内容
【题目】 Ben was busy taking a training class, _________ we had to wait for him for half an hour.
A. so B. because C. although D. but
【答案】A
【解析】
试题分析：句意：本正在忙着上训练课，所以我们不得不等他半个小时。so,所以，because因为；although尽管；but但是。结合句意，故选A。
练习册系列答案
相关题目
题目内容
【题目】 Ben was busy taking a training class, _________ we had to wait for him for half an hour.
A. so B. because C. although D. but
【答案】A
【解析】
试题分析：句意：本正在忙着上训练课，所以我们不得不等他半个小时。so,所以，because因为；although尽管；but但是。结合句意，故选A。