—Why is that boy running so fast?—He _.[ ]A. could be exercising B. might be catch the busC. must ch

题目简介

—Why is that boy running so fast?—He _.[ ]A. could be exercising B. might be catch the busC. must ch

题目详情

—Why is that boy running so fast?            
—He _        .              
[     ]
A. could be exercising  
B. might be catch the bus    
C. must chasing
题型:单选题难度:中档来源:同步题

答案

A

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