A. was playing B. am playing C. play D. played 4、The goods ___ when we arrived at the airport. A. were just unloading B. were just been unloading C. had just unloaded D. were just being unloaded 5、When Bob and his friends came, we___ our supper t...
更多内容请点击：成人学士学位英语考试冲关指导5 推荐文章