第13题: [单项选择]Sometimes children have trouble ______fact from fiction and may believe that such things actually exist. A. to separate B. separating C. for separating D. of separating 参考答案:B 答案解析:have trouble (in) doing sth．是固定搭配，作“做某事有困难”讲，短语中介词in可以省略。例如： Andy is one of the students who have tr
第34题:[单选题] He got to the station early _____ missing the train. A. instead of B. in case C. for fear of D. in addition to 参考答案:C 本题考点为介词短语辨析。instead of意为“代替；作为……的替换”; in case意为“以防；以免”；for fear of意为“生怕；以免”，后面常跟名词词组；in addition to表示“除……之外（还）”。根据题意，选项C为正确答案。
