摘要:第一节:语法和词汇知识(共15 小题,每小题1分.满分15分) 从A.B.C.D四个选项中.选出可以填入空白处的最佳选项. 例: We last night, but we went to the concert instead. A. must have studied B. might study C. should have studied D. would study 答案是C. 21. Unfortunately, when I dropped in, Doctor Li for Beijing to join in the fight against SARS, so we had not enough time for a talk. A. just left B. has just left C. is just leaving D. was just leaving

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