Question

— Could I ask you a rather difficult maths question?
— Sure,     .

A．pardon me

B．go ahead

C．good idea

D．forget it

Answer 1

B

考查情景交际。“我能问你一个很难的数学题吗？”“当然，问吧。”A“请再说一次”；B“请（开始）吧”；C“好主意”；D“没关系”。故选B。