Today the number of people English in China is increasing rapidly.A. learningB. are learn

问题补充：

Today the number of people English in China is increasing rapidly.

A. learning

B. are learning

C. to learn

D. learn

答案：

(答案→)A. learning

B. are learning

C. to learn

D. learn

解析：考查非谓语动词。句中people与learn之间的关系为主动关系，故用现在分词作定语，选A。