--- What’s the problem sir? --- You at least at a speed of about 100 miles per hour.A. ar

问题补充：

--- What’s the problem, sir?

--- You at least at a speed of about 100 miles per hour.

A. are driving

B. drove

C. were driving

D. have been driving

答案：

A. are driving

B. drove

(答案→)C. were driving

D. have been driving

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