题目

 17.  We got to the airport early,_____missing our flight. A.  in case of   B.  instead of   C.  for fear of   D.  in search of 答案：C18．听第10段材料，回答第17至20题．17．Which grade was the new student in？A．The third grade．B．The fourth grade．C．The fifth grade．18．What could the new student do when he met his new classmates for the first time？A．Do experiments with them．B．Recognize them by their names．C．Immediately remember their names．19．What was the level of the new student's daily conversation？A．It was limited to that of an adult．B．It was limited to that of a fifth-grader．C．It was limited to that of a five-year-old．20．What does the new student usually like to do after class？A．Spend time with teachers．B．Help the elderly with shopping．C．Shaking hands with the sixth graders．