I work hard at English ,and my English g（ ） is usually A （补全单词 ,开头是 g）

I work hard at school. hard at work school I(? At work,I must work hard I work hard at schoo 和 At school Iwork hard work hard at hard 英译汉:work hard at work hard at中文 work hard in还是work hard at? I work hard at school.So ____(do)my brother Maths don't I hard at work 组成句子 I work hard at the office.(改为现在进行时) I work hard at all my subjects是什么意思? I think I should work ____(hard) at English填hard还是harder?为什么 work hard at English是什么意思 work hard onI WORK HARD ON ENGLISH.这话对吗?I WORK HARD AT ENGLISH. 这话对吗?如果说不对,请说明你的理由 I don't work hard at English because I think it's______I don't work hard at English because I think it's______填一个词 是work hard at sth.还是work hard on sth. work hard at和work hard on 的区别