—Excuse me , Have you got an eraser?—Sorry, I haven't.Why _____ you ask Mary? Perhaps she has o

题目简介

—Excuse me , Have you got an eraser?—Sorry, I haven't.Why _____ you ask Mary? Perhaps she has o

题目详情

—Excuse me , Have you got an eraser?
—Sorry, I haven't.  Why _____ you ask Mary? Perhaps she has one.
[     ]
A.  do    
B.  don't  
C.  did    
D.  didn't
题型:单选题难度:中档来源:同步题

答案

B

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