【2013甘肃兰州】— Look at the boy playing basketball on the ground. Is it George?— It ______ behim. He told me he would play basketball after class, but he’s notsure.
In the shopping mall,there’re many different kinds of boots for people __________.
I’ll have an interview tomorrow, so I need to get my shoes _________.
I like sleeping with the window open ______ it’s too cold.
When the teacher came in, the students stopped _______ and became very ________.
—Do you believe that paper is made _____wood ? —Yes, I do . And you can see that books are made _____paper.