英语问题~~quick1.this is thebook whose cover is yellow.为啥不能用which

英语问题~~quick1.this is thebook whose cover is yellow.为啥不能用which 下面几句都对吗?语法?1：keep quick car2：keep car is quick 3：keep car quick1,2错在哪里？ 英语THIS.IS.FOR. 【英语问题】is this shirt tim's?为什么是这样表达的?is this tim's shirt?可不可以?如题, 小菜英语问题今天看新感念的时候碰到一个问题很疑惑.is this shirt tim's?这句话可以改成 is this tim's shirt 英语改错问题This computer is twice more expensive than that one. 一个英语问题：lt is hard ＿ ＿(finish)this work in so short a time this is me 英语作文 this is me英语作文 This is me英语作文 This is a secret(英语) 英语形容词性物主代词问题,is this watch his?no is mine?英语形容词性物主代词问题,is this watch his?no is mine?为什么是watch his 而不是 his watch? 一道英语电话用语的问题! Hello!Is that Sam? Yes,this is Sam ———. This is a photo of her family.改为同义词. Emma is my good friend .变成一般疑问句英语问题 一个初级英语问题who is the bookcase for?能说成whose bookcase is this?那2句有什么区别? This is( )friend.( )name is Alice英语, 一个英语问题,希望能提供权威点说法A.this kind of shirt is nice B.this kind of shirt are nice C.this kind of shirts is nice D.this kind of shirt are nice哪个对,为什么? 用英语回答问题时,在什么情况下用There are...,什么情况下用This is...