3.he must study English hard.(改为反问疑问句)

3.he must study English hard.(改为反问疑问句) I must study hard.怎么改写为反问句,疑问句,否定句,肯定句? He doesn't study hard改为附加疑问句 And he must study hard We must study hard 变为一般疑问句 you should study hard 改为一般疑问句 he always _____(study) English very hard. I don't think he will study hard改为反意疑问句 he decided to study english hard from now on 改为同义句 怎么改 We must study hard,---?反意疑问句的答案 He's never overslept,改为反问疑问句 you must study english hard 的谓语和主语是什么