We must work hard at English（一般疑问句） ———hard at

We must work hard at English（一般疑问句） ———hard at We shall work hard at English.(改为一般疑问句） work hard at English是什么意思 (In order to master) English ,we must work hard at it为什么这样写? we must study english hard or we can not be good at it —— —— work hard at hard At work,I must work hard We work hard at English.求英语作文 We should work hard at english语法正确吗 We must study hard 变为一般疑问句 We must ( )(work)hard. school hard at work