问题
选择题
After they _______ stars in their own country, the Beatles _______ the United States.
A．had become; toured
B．have become; toured
C．became; toured
D．became; had toured
答案
答案：A
题目分析：句意：甲壳虫乐队在自己的国家成名后，他们开始去美国巡回演出。“成名”在“巡回演出”之前，而“巡回演出”已经是发生在过去的事情，表示过去的过去，用过去完成时，选A。