it's not difficult 【 】us to work qut the math problem [ ] this way.a on at b in on c for ind with of

问题描述:

it's not difficult 【 】us to work qut the math problem [ ] this way.a on at b in on c for in
d with of

选C, for在句中表示“对我们来说”, in the way, 这是固定的介绍,表示 "以这种方法“
全句译为: 对我们来说,用这种方法解这道数学题并不困难。

C for in

c for ,in