A number of students attending the meeting now and the number of students more than 100.A.

问题补充：

A number of students attending the meeting now and the number of students more than 100.

A. are, has reached

B. is ,has reached

C. are, have reached

D. is, have reached

答案：

(答案→)A. are, has reached

B. is ,has reached

C. are, have reached

D. is, have reached

解析：考查主谓一致。The number of…指…的数字，做主语谓语动词用单数的形式；a number of许多大量，修饰可数名词复数形式，谓语动词用复数。故A正确。