If he had known the road was icy, he wouldn’t have...

Câu hỏi: If he had known the road was icy, he wouldn’t have been driving very fast.

A He was driving very fast because he didn’t know the road was icy.

B He has been driving very fast because he doesn’t know the road was icy.

C If only he knew the road was icy, he wouldn’t be driving very fast.

D He had been driving very fast because he didn’t know the road was icy.