---Did you listen to the speech?
--- No, we ______ it. But we had a lot of traffic on our way.
A. could have attended B.must have attended
C. could attend D. shouldn't have attended
---Did you listen to the speech?
--- No, we ______ it. But we had a lot of traffic on our way.
A. could have attended B.must have attended
C. could attend D. shouldn't have attended
.A
该题考查的是虚拟语气，表示“本能……”是与过去事实相反，要用could+have done形式。