They are study English hard 和 They study English hard哪句对?

They are study English hard 和 They study English hard哪句对? They should study English hard.变为被动语态 They 什么 study hard they both study hard 同义句转换 I will hard study English We study English very hard Lucy ( )(study) English very hard. The students study hard ( )English i hard to study english They are all working hard ( ) at English. 英语翻译Most students study English hard at school but they only Linda is going to study hard at English this term对study hard