Today number of people learning English in China increasing rapidly. A. a; isB. the; isC

问题补充：

Today number of people learning English in China increasing rapidly.

A. a; is

B. the; is

C. a; are

D. the; are

答案：

A. a; is

(答案→)B. the; is

C. a; are

D. the; are

解析：考查冠词及主谓一致。句意：当今在中国学英语的人数正在快速的增长。前文特指学英语的数目，the number of……的数目，为抽象名词，不可数，故谓语动词用单数，选B。