Question

18. ~Did you attend the opening ceremony of The Voice of China last week?

―Sorry！ We    it, but we had a terrible

traffic accident on our way.

A.    must have attended

B.    must attend

C.    could have attended

D.    could attend

Answer 1

18.   C考查情态动词。句意："你参加了上周《中国好声音》的开幕式了吗？""真遗憾！我们本来能参加的，可我们在路上遭遇了 一场严重的交通事故。"从did和had判断，此处是对过去发生事情的推测，故排除B、D项；must have done肯定做过某事；could have done原本能做某事而实际上并没有做。根据句意可知选C。