Question

The taxi was so slow that we might as well _________ on the bus

1. A.
   go
2. B.
   have gone
3. C.
   to go
4. D.
   having gone

Answer 1

B
考查虚拟语气。句意：这辆出租车是如此慢，我们好像上了公交车。可知下文假设的是已经发生的动作。故用完成时态。might+have+done”表示对过去事情的推测，意思是“可能已经”，故选B。