if you work harder,i think you will get better grades.这句话对吗?需要主将从一吗?另外,if的条件句有没有不是主将从一的特例?还有,i think...的句子在一些用法上是以后面的宾从为主吗?

If you work harder than before,I'm sure you______better______(pay). I hope ( ) .A.you to work harder B.you will work harder C.your work harder D.to you work harder要原因, 根据句意及首字母提示完成句子：If you want to i _____your English,you must work harder If I ___ (be)you,I would study harder. If you ____ ,you're sure to make great progress.A、work harder B、work hardly If you work harder,you will learn English better.(改为同义句)____ harder,____ you will learn English better. Under your i______ ,I will work harder.Don't worry:I will do it on my o____ .If necessray,I willcall you for help. You will improve you english ----- you work harder.A.or B.and C.if D.so If you work harder ,you will get better r---in your lessons If you want to get a great s ,you must work harder than others. if you (work)__ harder last year,you would have passed your exam If you work harder ,you will get better r---in your lessons If you want to r___ a hight level ,you must work harder If I (work) _ harder at ordinary times, I would have passed all the exams. I hope you'll have a good fature,so you must work hard .I think I'm sure you'll succeed in your接上 studies,if you work harder.Good cuckI hope you'll have a good fature,so you must work hard .I think I'm sure you'll succeed in your studies,if you w Work harder,and you will makemore progress 同义句 用if Your dream will come true sooner or later if you work harder form now on.翻译 i believe that the harder you work ,the better result you will .怎么翻译?