用适当的情态动词填空：
【小题1】You’ve been working all day. You ______ be very tired.
【小题2】( The door bell rings) I wonder who that is. It _____be Lisa. She’s still in the library at this time.
【小题3】It is a long time since we met last time. You ________come and see us more often.
【小题4】I haven’t decided where I’ going for my holidays. I ________go to Australia.
【小题5】My father’s birthday is coming. What_________I get him?
【小题6】Why don’t you try on this dress? It ____________look nice on you.
【小题7】“who was the man talking with your teacher?” “I’m not sure. I _____be her brother.”
【小题8】I don’t know when the guests______________be here. They_________arrive at any time.