What does Ann advise her husband licence执照 advice wave track mile overtake dream sign driving  licence charge speed licence Where do you think you are? On a race track? You must have been driving at seventy miles an hour. I can't have been I was doing eighty when I overtook you Didn't you see the speed limit? I'm afraid I Didn't officer. I must have been dreaming. Let me see your driving licence. I won't charge you this time  But you'd better not do it again! I'll certainly be more careful take my drive dentist forty She must have fifty youngest reading sleeping working 不可能是...或一定是...