新概念2的17课中She must appear in a bright red dress and long black stockings.为什么用must而不能用has to?

新概念2的17课中She must appear in a bright red dress and long black stockings.为什么用must而不能用has to? 新概念第二册的17课中,最后一句话If anyone ever asks her how old she is,...是不是有问题新概念第二册的17课中,最后一句话If anyone ever asks her how old she is,she always answers,'Darling,it must be terrible to be grown u 新概念英语2册17课最后一句if的用法IF anyone ever asks her how old she is,she always anwsers,darling,it must be terrible to be grown up.怎么主句和从句都是一般现在时啊,不是条件状语从句从句一般现在时,主句 新概念1第130课课后练习,i think she was Danish(Swedish)I don't think she was.She can't have been Dashin.She must have been Swedish.这个不是怪怪的吗?什么叫做那时肯定是瑞典人,那现在不是了?不能直接说She must be Swe 新概念英语第二册第17课 Darling,it must be terrible to be grown up问中to be grown up 为什么grown加 2、She must have read the novel last week,didn't she 我写的是：She must have read the novel last week,hasn't she? 新概念3中第一课 A puma at large中,HAVE的用法疑惑新概念3中第一课 A puma at large中,有一句话：As no pumas had been reported missing from any zoo in the contry,this one must have been in the possession of a private collector an 新概念第三册的第一课:where must the puma have come from?第三册的第一课where must the puma have come from? 新概念英语第二册17课阅读理解★TextAlways youngMy aunt Jennifer is an actress.She must be at least thirty-five years old.In spite of this,she often appears on the stage as a young girl.Jennifer will have to take part in a new play soon.T 新概念英语第二册第17课一个疑问最后一句,If anyone ever asks her how old she is,she always answers,Darling,it must be terrilbe to be grown up!”为什么是to be grown up而不是to grow up 请过路高人谈一下must be doing 与 must have been doing 的用法.这是在新概念第九课出现的.这里的 must 换成 shall 、could 、can 等意义上有什么变化吗? 新概念英语2的单词（1~40课）!要最新版中全的! 几道新概念英语2册上的题一.改写以下句子,用must be 来代替括号里的词组.1.(I,personally,think he is) a fool.2.(I,personally,think he is) mad.3.(I,personally,think she is )over forty. 英语新概念第一册30课的这道习题怎么做?Amy（ ）in.Mrs Jones wants her( )shut the door.This（ ）is very（ ）.Amy（ ）open the window and （ ）the room.Mrs Jones（ ）Amy to put these（ ）in the wardrobe.Then she must make t 新概念2摘要写作第七课的 新概念2第37课的摘要 新概念2的第十课是什么课文 新概念2第15课的答案