they can't found their keys错在哪?

they can be found they can't found their keys错在哪? The police still haven't found the lost child, but they're doing all they _______.can/may/must/may答案是can.请问为什么不选should? The police have just informed me that they can't find my car.According to them,the car cannot be found anywhere. Can they go to the movies?A.Yes,they can.B.They can't File can't be found! Parents must put dangerous materials in the place where kids can't find them(改写句子,句意不变）Parents must ___ dangerous materials ___ kids so that they can't be found. They can't （t） their breakfast to the office. They can't understand what the foreigners say,they can't read English books and newspapers. The police ____(search) for the thief these days ,but they haven't found him yet if I report it to the police,they'll want to know where I found it.--()?--They might want to know what I was doing there.A.Can't you tell them B.why not B为什么不对? I don't believe they can pass the exam,_______?does he can't he doesn't he can they The police still have not found the lost child, but they’re doing a来了t they _______ .【A】 After the intersection,the blinking stars can't be found from then o They can't walk. 关于must may can could might can't的填空The brown wallet ( )be Tom's or Bill's ,They both like brownI haven't seen Alice for several years.She ( )be a big girl nowWhose jeans are these?I found them on the chair in the living room.They ( )be mine They can can what they can can,but can't can what they can't They can't _____(are) in the reading room.