I remember but I have forgotten the exact number.A. payingB. being paidC. to payD. to b

问题补充：

I remember , but I have forgotten the exact number.

A. paying

B. being paid

C. to pay

D. to be paid

答案：

A. paying

(答案→)B. being paid

C. to pay

D. to be paid

解析：考查remember的用法。从后半句推出pay这个动作发生过，故在A、B中选。又pay

是及物动词，如选主动式，则缺宾语。