People wondered how such a silly and careless mistakes _______. [ ]A. came aboutB. came out C. was h

题目简介

People wondered how such a silly and careless mistakes _______. [ ]A. came aboutB. came out C. was h

题目详情

People wondered how such a silly and careless mistakes _______.   
[     ]
A. came about    
B. came out  
C. was happened    
D. was brought
题型:单选题难度:中档来源:同步题

答案

A

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