Swimming may sometimes mean all the difference between_____?A.alive and dying B.life and death C.living and dead D.life and dead为什么不能选C啊?

May I go swimming now?-No,you__________填什么 swimming in a wrong place may not be safe翻译 (1/2)求答案：He is swimming.He ___ swimming for exercise.A.may be B.must (1/2)求答案：He is swimming.He ___ swimming for exercise.A.may be B.must 选择恰当的单词,用正确形式填空.with,kind,may,way,use,or ,much,example,hear,tryThe hot dog is one kind of the most foods.Is was named after frankfurter,a ______ of German food.You may hear “hot dog”used in other _____ .People sometim swimming swimming ___ who want to do swimming may sign up here.A Any personB ThoseC AnyoneD These you may go swimming after you finish your homework改被动 They may go swimming with some friends tomorrow.(改为同义句）怎么改? You may go shopping with Ross _____ go swimming with Sam. 英汉互译3.0Ji'nanShangdong,China20 May 2009Dear David,Thank you for your letter.I am glad to know that everything is going well with you.Thanks for the photos,too Linda looks healthier and taller than before.It is very hot here now,but it sometim now and then we all get ill 求翻译 不要翻译器Now and then we all get ill. Then we usually go to see a doctor. Doctor knows a lot about what makes us ill. They may give us something to take. The medicine often makes us well again. But sometim 英语选择May I go swimming now?May I go swimming now?--- No,you ______.You must finish your homework first.A.mustn’t B.may not C.couldn’t D.needn’t 紧急!May I go swimming now?May I go swimming now?--- No,you ______.You must finish your homework first.A.mustn’t B.may not C.couldn’t D.needn’t 到底是选A还是选C?为什么? sometim的几种形式是什么,各代表什么意思.? -who would like to go swimming with me -Who would like to go swimming with me?--I __________.A shall B would C may D will 英语翻译He may be at school now边反义疑问句He may swim at the swimming pool last night变反义疑问句?怎么变谢谢了 May i go swimming now?no,you (mustn＇t/may not）.YOU must finish your first.答案是mustn＇t,理由?