it has at no time been more difficult for us to pass the examination 如何倒装

问题描述:

it has at no time been more difficult for us to pass the examination 如何倒装
还有一句 there was a sudden gust of wind and his hat went away

1.at no time has it been more diffcult for us to pass the examination.
2.sudden there was a gust of wind and his hat went away.