Have you found any useful clues， sir？
We （work） on it． There's nothing much I can say at the moment．
Everyone was （surprise） to see her at the party last night．
Yang Liwei is one of the national （hero）． We should learn from him．
I （forget） to turn off the light when I left my room yesterday．
My cousin has a pet dog． （it） name is Wangwang．
He is too weak． It's （possible） for him to move the heavy box．