第23题: [单项选择]A. 8 years. B. 16 years. C. 20 years. D. 30 years. 参考答案:C 答案解析:[解析] How long did Ethell teach minority students 题目问Ethell教过多少年的少数民族学生,文章提到“I taught my mino
第28题:[单选题] How much is this necklace? — ________ A. It's very nice. B. It's a birthday present from my parents. C. It costs fifty pounds. D. It's a bargain. 参考答案:C