(2013·大纲卷)A serious study of physics is impossible some knowledge of mathematics.
at my classmates' faces, I read the same excitement in their eyes.
---Can I borrow your car this Sunday? ---______________. I won’t use it anyhow.
In China car is becoming popular means of transportation.
______ impressed the audience most was ______ the magician Liu Qian played in this year's Spring Gala.
I enjoy when you help whoever is suffering in the earthquake.