it was no use pretending that i had not seen him这句话怎么翻译.其中的pretending能不能换成to pretend?为什么?that在里边起什么作用

问题描述:

it was no use pretending that i had not seen him
这句话怎么翻译.其中的pretending能不能换成to pretend?为什么?that在里边起什么作用