第1题: [单项选择]Albert Einstein, the greatest scientist in the 20th century, once______an offer of $1,000 a minute to speak on the radio. A. turned down B. turned up C. turned out D. turned in 参考答案:A 答案解析:[解析] 本题考查动词词组的用法。根据句意并结合四个选项的意思可以判断爱因斯坦曾经拒绝别人提供的高价演讲机会,因此选项A(拒绝)为正确答案。 [避错指南] 选项B(出现)、C(生产)和D(上缴)