为什么in后面加loveIN GERMAN flowers are a good present to take to your dinner hostess,but dong't take her red roses because it means you are in love with her.如题

为什么in后面加loveIN GERMAN flowers are a good present to take to your dinner hostess,but dong't take her red roses because it means you are in love with her.如题 talk in English,为什么talk后面要加in? 为什么in the 1860s后面要加s? 英语 这里 划线句子为什么here后面要加in 为什么Where did you live?的后面不加in,而What house did you live 后面要加in? at home 为什么不用in 举例说明 如果用in 后面要加the吗at home 为什么不用in 举例说明 如果用in 后面要加the吗 in cash为什么用in不是in后一般加语言with后面加工具顺便问一下by后面加什么 in后面加什么词 为什么名词所有格有的名词后面要加s,有的后面不要加s 例如 in the shoe shop 为什么名词所有格有的名词后面要加s,有的后面不要加s 例如 in the shoe shop 介词后面为什么要加the例如，in the library,为什么不直接in library?还加一个the i have no room to live in 后面为什么要加介词in the united states fought in world war ll in后面为什么不加the what street do you live in 为什么要加in?后面不是没有地点吗? The waiter brings in a roast duck to their table.bring后面为什么加in Do you think there is much future in that?翻译.future后面为什么加in live的用法为什么Where do you live?后面不用加in 而Which city do you live in?后面要加in? 英语介词分别在哪些句子后面加,像be interested in ,be covered by,为什么加in by