--- It’s already 9:00 o’clock but he hasn’t turned up yet. --- He in the traffic jam. A.

问题补充：

--- It’s already 9:00 o’clock, but he hasn’t turned up yet.

--- He in the traffic jam.

A. could have caught

B. should have caught

C. must catch

D. would have caught

答案：

(答案→)A. could have caught

B. should have caught

C. must catch

D. would have caught

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