I tried to persuade him but he remained firm这里的firm是什么词性用firmly不可以吗

I tried to persuade my father to give up smoking 为什么tried要过去式 而persuade不用过去式 急 If only I ____ him to give up gambling.A.tried to persuade B.have persuadedC.persuade D.had persuaded I tried to persuade him not to smoke,but he wouldn't listen to me I tried to persuade him but he remained______.这题填stable?还是firm?为什么? i _____ him _____ up smoking,but failed.B advised ; to giveC tried to persuade ; to give I tried to persuade him not to keep in touch with her,but what Isaid was always-- I tried to persuade him but he remained firm这里的firm是什么词性用firmly不可以吗 I tried very hard to persuade him to join our group but I met with a flat refusal .求翻译,句中有那些语法和语句? I tried to call 完成句子之四 I tried to persuade my brother ________ ,（未完,请看补充）I tried to persuade my brother ________ ,but he didn't listen to me.（不要去如此之深的河游泳）① out of swimming in such a deep river② not to swim in 请教如下英语句子各部分充当什么成分?I had tried my best to persuade Bob to join the club.这句话谓语是谁呢?是try?还是真正的谓语是persuade,try my best to 是用来修饰persuade的,有这种用法、语法吗?后面两 --- Do you know Susan resigned from his job?What a pity!--- __________!I had tried to persuade him not to,but failed.A.That’s cool B.So what C.Not surprising D.No kidding写出原因,正确答案是D She tried to talk to him an persuade him not to buy the car. She tried to talk to him in order to persuade him not to buy a car.这两句话是怎么回事啊?第一句an persuade him not to……这里 persuade是及物动词,前面加an,怪怪的. ____,I couldn't persuade him to change his mindA.Hard although I triedB.However I tried hardC.No matter hard I triedD.However hard I tried个人觉得选“C”,不知道是否正确.还有1题 His remarks left me _______ about his real purpose.A.won They have tried ___ to persuade him to give up smoking.B,almost everything possible D,everything almost possible There is nothing more I can try to persuade you to stay通顺翻译?为什么不用persuading而是to persuade? I have just tried to ring you... in vain __________ to persuade her to give up her wrong opinion and cooperate with usA.we tried B.we had tried C.did we try D.had we tried 为什么?