Denmark joined the ASPnet in 2000

Can you repeat this sentence, but add in punctuation?
Denmark joined the ASPnet in 2000.
I was very glad to see Mrs Hooker on Friday how well she appears to be and looks

Can you repeat this sentence, but add in punctuation?
I was very glad to see Mrs. Hooker on Friday; how well she appears to be and looks.
In the Registry Editor select the Error 21related key eg Windows Operating System you want to back up

Can you repeat this sentence, but add in punctuation?
In the Registry Editor, select the Error 21-related key (eg. Windows Operating System) you want to back up.