―Karen can I talk to you for a minute?―Sure ?A. how comeB. what’s upC. how’s thatD. what

问题补充：

―Karen, can I talk to you for a minute?

―Sure, ?

A. how come

B. what’s up

C. how’s that

D. what for

答案：

A. how come

(答案→)B. what’s up

C. how’s that

D. what for

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