问题补充：
More than one-third of the Chinese in the United States live in California, in San Francisco.
A. previouslyB. predominantly C practicallyD. permanently
答案：
解析：predominantly (=mostly; mainly) 主要地。 previously (=coming earlier in time or order) 先前, 早先; This is better than any solution previously. (这个办法比以前提出的任何解决办法都好。) practically (=really; in a practical way) 实际上。permanently (=going on for a long time) 永久地。
本题译文：在美国, 华人中有三分之一居住在加利福尼亚洲, 其中主要是在旧金山。
