28. What was unexpected was that the disrespectable fellow the old man.A. could have robb

问题补充：

28. What was unexpected was that the disrespectable fellow the old man.

A. could have robbed

B. should have helped

C. should rob

D. might have helped

答案：

A. could have robbed

(答案→)B. should have helped

C. should rob

D. might have helped

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