题目

完形填空(共10分) 根据短文内容，从A、B、C、D 四个选项中选出一个最佳答案。(共10分，每小题1分) Mr. Green works in an office in Chicago 21 Saturday, he went to the office to some work. When he got on the elevator, it stopped between the 22 .Mr. Green could not get out of the elevator. He started to 23 , but no one 24 him. Then Mr. Green remembered that it was a holiday in America. No one was going to come to work 25 Tuesday. There was 26 for him to do. He had to wait. With nothing to eat 27 drink, Mr. Green slept for most of the time. Early Tuesday morning, 下列实验装置、试剂选用或操作正确的是 [　　] A． B． C． D．