If I don't mention it here, it is correct above:
Let's go. The sooner, the better.
I am going to tell nobody? about it, I promise to keep it a secret
OR
I am not going to tell anybody about it, ...
The Canaries are a good place...
If you dont know a word, look for it in a dictionary.
There is much snow on the road. OR There is a lot of snow on the road.
He made mistakes and it did him a lot of harm.
OR
He makes mistakes and it does him a lot of harm (the tenses must agree)