问题补充:
Chinese is becoming more and more popular. It in many schools in foreign countries.
A. teaches
B. is teaching
C. is taught
D. has taught
答案:
A. teaches
B. is teaching
(答案→)C. is taught
D. has taught
解析:根据第一句内容Chinese is becoming more and more popular.故第二空it为C
Hinese,故用被动语态,其结构为主语+be+过去分词,故选答案为C