let's start again和let's to begin和let's doing again和let's ask again区别“Don’t you know how to speak to an officer?” the young officer said angrily “Now let’s 9 again, Can you change the money for me?”上面的就是这个9的

let's start again和let's to begin和let's doing again和let's ask again区别
“Don’t you know how to speak to an officer?” the young officer said angrily “Now let’s 9 again, Can you change the money for me?”上面的就是这个9的四个选项、、

个人觉得应该选择A.
B和C的语法应该是错误的.let用法一般是let us do sth.
而A与D相比,一般没有用D这种说法的（从语境来看）.
所以选择A.