.用适当的情态动词填空1When you cross the street, you must be careful with the passing cars.2It cant be his mother, for she has been ill at home for a long time.3We enjoy good weather in January, but sometimes it can be terribly cold.4I may come to the party with you, but I am not sure.5When he was young, he would climb the small hill every morning.6May I take this seat?Yes, you may/can7Tom comes from Australia, so he can speak English very well.8If you can pass the driving