we won't elect him our monitor because he doesn't always observe the regulations,____setting a good example to the other
问题描述：
we won't elect him our monitor because he doesn't always observe the regulations,____setting a good example to the others.
let alone/not to mention?
我觉得两个都可以,答案是和not to mention
请问let alone 有什么错?
谢谢啦~~
答
答案是对的,应该用not to mention,虽然let alone 也表示"更不用说",但它后面不能加doing 或者to do