people who learn Engiish as a foreign language more than 750 million.
A. A number of... reach
B. The number of...e to
C. The number of... reaches
D. A number of...es to
网友回答
A. A number of... reach
B. The number of...e to
(答案→)C. The number of... reaches
D. A number of...es to
解析：句意：把英语当作外语来学习的人数已经超过了7.5亿。表示……的数目，用The number of，谓语动词用单数，选C。