责无旁贷什么意思
have to和must的区别。
奥林匹克标志
must 的用法动物冬眠
mus t表示主观的义务和必要，主要用于肯定句和疑问句，意思为必须……，应当…..的意思.由mus t 引起的疑问句，肯定回答要用must或have to，否定回答要用needn'或don' have to意思是不必” must的否定形式是must not（mustn't），表示不应该” 不可” 不许”的意思，语气比较强烈。如：You must n't waste your time你不应该浪费时间。Must we hand in our exerci books today? —Yes, you must是的，必须今天交。一No, you needn't不必今天交。二．have to 的用法
have to常表示因客观需要必须做某事，有必须” 不得不”的意思，其后跟动词原形。
其单三形式是has to
过去式是had to，
将来时态的形式是shall/will have to.
现在完成时的形式是have/ has had to
have to的否定形式是don't have to，意为不必要”相当于neednt
处怎么组词
萝卜猪肉丸女口：You don't have to tell her about it你不必把这件事告诉她。
have to的疑问式和否定式通常借助助动词do （does）/did等构成。
We must finish the work before lunch. （强调有义务早完成工作，不要拖延。）=We have to finish the work before lunch. （强调客观情况迫使，如不完成就会…是不得以而为之。）
王维是什么朝代的I 'm afraid I have to go now. 恐怕我得走了。（表示遗憾）
I must go now.我必须走了。（主观看法）
My mother was ill yesterday, so I ____ ____ s tay at home.
She can't come. She ___________ help her mur®不能来。她必须帮助她妈妈。
不喜欢英语We _____ ____ go to the office every day .我们每天都得上班。
I shall have to stay here.我不得不/只好呆在这儿。
You don't have to worry about them anymore. 你不必再为他们担忧了。
We don't have to go to school on Saturdays and Sundays. 星期六和星期天我们不必去上学。
Do you have to leave so soo n?你必须这么早走吗？
中山陵园风景区
What ______ she ______ _____ d o? 她必须做什么？
They didn't have to wait for him. 他们不必等他。
He _____ ____ wait for another two hours becau the train was late。
