If he should come here tomorrow,I would talk to him.这句是表示对将来主观推测的虚拟语气.请问可不可以改成If he came here tomorrow...我产生疑问的原因是,对将来主观推测的虚拟语句的从句有should+do、过去

I'll be very glad_____ to the lecture this afternoon.A.if he will comeB.if he comesC.if he should comeD.if he had come Bob could have seen the famous star _yesterday morning.A did he come B if he came C had he comeD if he should come ___i might have ended up dead.A.were he not to come to the rescure B.should he not come to the---rescure.C.had he not come to the rescure D.if he did not come to the rescure If he _______ tomorrow,he would find Mr Wang in the office.A.comes B.will come C.should comeD.come为什么 I w____ if he will come tomorrow If you build it,he will come if he ___tomorrow ,I would tell him everythinga)comes b)will come c)would come d)should come 难道选A?为什么啊 He may come here if he ______ (be) free tomorrow. If he has time,he can come tomorrow.找出错误 He may come here before five if he()(be)free. He mey come here if he _______( be )free if he has time,he must come改错 If he ___(have) time,he'll come back What if ____________ back?A.he come B.he comes C.does he come D.he dose come what If [ ]bake?A,he come b.he does come c.he comes d,does he come I don't mind if he (come),but if he (come),please tell me I don't know if he will come tomorrow i think he if he free If he should fail,he would kill himself.为什么用should ,不是should用于第一人称吗?