精选优质文档-倾情为你奉上一、选择填空( ) 1. _ it was early, she turned off the radio and went to bed. A. Because B. Though C. Since D. As( ) 2. Which shirt is more expensive, the white one _ the green one? A. and B. or C. but D. so( ) 3. Work hard, _ youll learn English well. A. and B. but C. for D. or( ) 4. You may go _ you clean the classroom. A. bef
