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3. 既然 "be allowed" 和 "must be allowed" 符合Subjunctive Mood "Present Subjunctive" 的形式, ...
To be required or obliged to go:"I must from hence"(Shakespeare). n. Something that is absolutely required or indispensable:Promptness on the job is a must. Comfortable boots are a must when going on a hike. [Middle Englishmoste, from Old Englishmōste, past tense ofmōtan,to be allowed...
First recordedbefore 900;Middle Englishmost(e),Old Englishmōste(past tense); cognate withGermanmusste.Seemote2 Origin ofmust2 First recordedbefore 900;Middle English,Old English,fromLatinmustum,short forvīnum mustum“new wine” Origin ofmust3 ...
1(past tensehad to)to have to do something because it isnecessaryor important, or because of alawor order→have to,obligeAll passengers must wear seat belts.It’s getting late. I really must go.You must work hard.We must all be patient.Must I pay now?For the engine to work, the ...
past tense had to to have to do something because it is necessary or important, or because of a law or order 必须; 【例句】 All passengers must wear seat belts. 所有乘客都必须系安全带。 【例句】 It's getting late. I really must go. 天晚了,我真的必须走了。 【例句】 You must ...
must do 表示对现在或未来的推测；must have done 表示对过去的推测。由此公式可知：must be = 现在或...
It must be going to rain tomorrow, won't it? 明天肯定要下雨，是吗？陈述部分有must 的疑问句，疑问部分根据实际情况而定。例如：...,1,mustn't you? 没有这个说法。。haven't you? 可以用阿 don't you? 句子是past tense。。。不能用,1,no,1,英语 you must have read this book,...
She is singing on the stage. She must be very nervous. But she looks so confident. What tense is used in this sentence? A. Simple present tense B. Present continuous tense C. Simple past tense D. Past continuous tense 相关知识点: 试题来源: ...