Question

Jack _____ yet, otherwise he would have telephoned me.

A. mustn’t have arrived                    B. shouldn’t have arrived

C. can’t have arrived                      D. needn’t have arrived

Answer 1

C

解析:

根据第二分句“否则的话他就会给我打电话了”可知“Jack肯定还没到”，“can’t+完成式”意思是“根本不可能”。