(B) 根据句意及汉语提示填空。
【小题1】Every day we walk _______ (穿过) the school gate.
【小题2】All the football players must _______ (遵守) the football rules.
【小题3】I think that Yang Liwei and Liu Xiang are both our country’s _______ (英雄).
【小题4】Dr. White _______ (发明) a kind of new medicine last year.
【小题5】I want to be an _______ (发明家) when I grow up.