Unit One ( )1. Its _ useful book. I borrowed if from _ the school library. A. an,a B. an ,an C. a, the D. an, the ( )2. I have five colour pencils. One is red, _ is blue and _ are green. A. another, the other B. the other, others C. others, the others D. another, the others( )3.This picture often makes him _ his poor life. He is often made _ so long. A. think of, to work B. to think of, work C. think of, work D. to think of, to w
