Question

They kept trying, and their efforts finally _______.

A．make it	B．paid off
C．are made it	D．are paid off

Answer 1

B

make it意为“做成功、到达”，无被动式，排除选项C。选项A时态错。pay off意为“（计划等）顺利成功”时，也是没有被动式的。故正确答案为B。