Question

---You were driving at 100 km an hour, sir.
---But officer, I ______. My car can’t go more than 80.

1. A.
   may not have to
2. B.
   couldn’t have been
3. C.
   wouldn’t like to
4. D.
   needn’t to be

Answer 1

B
考查情态动词的用法;couldn’t have done过去不可能做…,句意是：--你刚刚开车一小时100公里。--但，长官，我刚刚不可能是这个速度，我的车速不超过80.选B。