Verb conjugation of "klopfen" in German

One of the users claimed that the speed of the website on facebook was very slow. Did you experience the same issue? Yes, I've also noticed that the site is a little slow, but not so slow as to find it necessary to advise you.
Productivity declines when it is too hot outside. Oscar therefore closed his laptop and production unit and headed towards the lake where his pretty girlfriend was waiting for him. Once he arrived he bought a ice cream as a surprise.
Many thanks for the nice emails. I visit this site on the Internet all the time, but I have not visited your blogs. Your country is certainly an interesting country and it has mountains and snow.