The coat was bought in Shanghai.是什么时态,

The coat was bought in Shanghai.是什么时态, the coat I bought yesterday is /was expensive?是填is 还是was He bought the same coat that i was wearing yesterday?为什么不能用that? The coat bought last week is too big for me .这句话的有语法错误吗?还是应该改成The coat I bought last week is too big for me .或者The coat was bought last week is too big for me .为什么第二种改法的which不能省略呢？第 the book was bought yesterday. She bought the coat on her( )四十birthddy..急用 Tom bought the coat yesterday.同义句转换tom __ __ the coat __ __ __ 有关被动语态的问题His mother bought him a new coat.变被动1.He was bought a new coat by his mother.2.A new coat was bought for him by his mother.但是第一句He was bought a new coat by his mother.我有点看不懂,可以这么变吗? This is the shop where/which I bought the coat yesterday哪一个,为什么 is this coat the one you bought last week? 为啥用THE ONE 而不是which,that? This morning,I went to the shop and change the coat I bought.改错, this the coat he is which bought yesterday怎么组成一句话? 介词填空 什么the money ,she bought a new coat 什么her father the coat l bought week is too big for me翻译给个好评速度… I have（ got） the coat for 8 weeks.got 换成 bought 行不行? 1.一导体两端加上5v电压时,通过的电流为0.2A,如果加上10v电压时,通过的电流为多大?英语；句型转换1.he was bought a red coat.she has bought a red coat,too.(同义句)he was bought a red coat.____ _____she.2.l am sure th I have bought the coat for 8 months.这句话对吗?我总觉得不对,感觉I have had the coat for . The coat cost so little that I bought it.同义句The coat__ __ __ for me to__.