—Do you know where David is? — Well he have gone far — his coat is still here.A. should

问题补充：

—Do you know where David is?

— Well, he have gone far — his coat is still here.

A. shouldn’t

B. can’t

C. mustn’t

D. wouldn’t

答案：

A. shouldn’t

B. can’t

C. mustn’t

D. wouldn’t

解析：考查虚拟语气表示推测。句意：—你知道David在哪里？—嗯！他不可能走远的。他的上衣还在这里。Shouldn’t have done本不应该做某事，实际上做了；can’t have done不可能做某事；共计他的上衣还在这里，说明B正确。