I have to study harder than before（一般疑问句）

I have to study hard.I don't like geography.I must be study harder i hard to study english I have a hard time _____ English now.填study还是to study? I am not good at English I have to study hard to i-------- it I need to study hard 对 study hard 提问 l have to Study hard (一般疑问句) I have no chance to study hard ,so I won't give up If I have another c____,I will study hard to find a good job.空上填什么? I wish you to study hard . but i have to study I have to study very I have to study chinese. If I want to advance my career,I have to study hard then.高手请帮看下a.If I want to advance my career,I have to study hard then.b.If I want to advance my career,I have to study hard right now.Q1.这两句差不多意思吗?Q2.第一句的THEN If I want to advance my career,right now I have to study hard then.请会的帮看a.If I want to advance my goal,right now I have to study hard then.b.If I want to advance my goal,right now I have to study hard.我写的这两句语法正确吗?有 You have to study hard to i____ your English. I am going to study hard this team.(分别对I,study hard,this team提问) I must study hard ,or i will have no face to see the person who love me and I study hard as soon as I go to school