Every Chinese takes pride in our scientific ( 技术 ), such as high﹣speed railway.
I'm (忙于)doing housework on the weekends.
I (热爱) you,my motherland,China.
His (发音)is so terrible that I can't understand him.
He works on the plane.He is a good .(飞行员)
Smith is an old teacher with thirty years' (经验)of teaching.