could I .?疑问句的否定回答是哪一个?A couldn't B mustn't C can't

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couldI.?疑问句的否定回答是哪一个?Acouldn''tBmustn''tCcan''tcouldI.?疑问句的否定回答是哪一个?Acouldn''tBmustn''tCcan''tcouldI.?疑问句的

could I .?疑问句的否定回答是哪一个?A couldn't B mustn't C can't
could I .?疑问句的否定回答是哪一个?A couldn't B mustn't C can't

could I .?疑问句的否定回答是哪一个?A couldn't B mustn't C can't
C

A

B

I,m sorry i can,t i have to do sth 或i ,m doing sth