——Yesterday I didn’t see Ben at the party. —— You him. We just came back from Beijing t

问题补充：

——Yesterday, I didn’t see Ben at the party.

—— You him. We just came back from Beijing this morning.

A. mustn’t have seen

B. needn’t have seen

C. couldn’t see

D. can’t have seen

答案：

A. mustn’t have seen

B. needn’t have seen

C. couldn’t see

(答案→)D. can’t have seen

解析：词义辨析。句意：昨天在聚会上我没看到本。你不可能看到他。我们今天早晨刚才北京回来。can’t have seen不可能看见。所以选D。