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? Shall we/I/he/she/they do some exercise this morning? ? Yes. ? Shall he e in? ? Ok. make offers ? I’ll wash your sports jacket. ? Shall I get a ticket for you? ? Shall we carry the books for you ? ? Shall I clean the blackboard for you? give advice ? You should not/ought not to eat a lot before swimming. ? The students should spend all their time working at their lessons. 和其他時(shí)態(tài)的連用 ? The boys may be playing football on the playground. ? The boys may have finished their homework by the time school is over. ? He plays basketball very well. He must have practiced it a lot. ? Our headmaster must have been to USA, for he knows the country so much. must have done 的反意疑問(wèn)句 ? You must have seen the film, haven’t you? ? You must have seen the film last week, didn’t you? ? His parents must have beaten him, haven’t they? ? His parents must have beaten him yesterday, didn’t they? shall可以用來(lái)征求對(duì)方意見(jiàn)。如: ? Accidents can happen. Anybody can make mistakes. can / be able to can/be able to ability ?在過(guò)去時(shí)態(tài)的肯定句中需要某種條件或努力做成某事 ,我們要用 was/ were able to而不能用 could。 ? Need I help you? ? Yes, please. ? You needn’t telephone him now. ? How dare you talk to the teacher like that? ? The g