Cоmplete the sentences with the simple pаst оr pаst prоgressive form of the verbs in pаrentheses. The Internet [A] (change) the way the company advertised. Last night, I [B] (see) an interesting commercial on television. In the commercial, a girl [C] (try) to use her mother’s cell phone. Her mother [D] (not know) how to use it. Scientists [E] (create) a medicine for many years. They finally [F] (release) the new drug in 2007. It [G] (be) very successful.