We all want to know who can________the physics problemYou know，it’s very difficult．

_____, a man of achievements, deep thoughts, but with simple habits. [ ]

Thank God we’ve finally cleared up some problems. Let’s ______, shall we?——All right. See you tomorrow.

In the living room was a beautifulkeyboard with a note: “To my wonderful mother, all my love, your son. “I was so____. It had been a long-standing jokein our family that I wanted a piano so that I could take lessons.[ ]

______could be judged from her eyes that she was terribly sorry for what he _____