.He went there on foot and got very tired but he by bus. The fare was rather cheap.A. co

问题补充：

.He went there on foot and got very tired, but he by bus. The fare was rather cheap.

A. could have gone

B. must have gone

C. ought have gone

D. will have gone

答案：

(答案→)A. could have gone

B. must have gone

C. ought have gone

D. will have gone

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