单项选择题
The booksellers didn't want to buy all the books,（）
A. did he B. didn't they C. do they D. did they
单项选择题 关于烟草专卖违法行为，表述错误的是（）。
单项选择题 John bought a $100 DVD player on sale at 8% off. How much did he pay including 8% sales tax（）
单项选择题 展示获得的某市儿童饮品市场各品牌占有率数字，最好采用（）。
