He has just arrive but he talks as if he knew all about it.为什么用knew?为什么不用know?是不是只有在主句的谓语动词是实意动词才用虚拟语气?谢谢了两位老师!

I don't know when he ___(arrive）填什么是will arrive 还是has arrive mike----a very interesting story.he is laughing loudly.a.has just finished b.just finished There______a fantastic concert.A.have just been B.has just beenC.have just had D.has just had 他独自走来走去.He ______ around_______. 30.Has he (arrive) home?Yes,he has.He (arrive) home at 8 o’clock..31.My father and I (have) lunch now.But I (have) breakfast with my sister.32.He (live) there for ten years.Now he (live) in Beijing.33.you just (be) to that shop?34.Have you ever (se I don't know when he ____,when he ______,i will tell youAwill arrive;will arrive B.arrive;arrive C.arrives;will arrive D.will arrive; arrives When he arrive at the station,the train______.A,has left B,left C,had left D,leaves has he _____(arrive)at the farm on time the report he has just written____wellA.is read B.reads.C.has read D.has been read He has just arrive but he talks as if he knew all about it.为什么用knew?为什么不用know?是不是只有在主句的谓语动词是实意动词才用虚拟语气?谢谢了两位老师! when did he ____?A.arrive B.arrive in C.arrive at D.get he has just left there 意思 He has _______ gone out.A just B now C soon He has _______ gone out. A just B now C soon judging from his face,the computer he has just bought_____his needs.a.has b.feels c.contains d.satisfies did he ( )thereDid he ( ) there?A.get to B.arrive at C.arrive D.reach to My grandfather_____.He is still very tireds.a.has just come back b.has already come back c. have yet come backd.have just come back A:So why doesn't your dog have hair?B:Ah,he just doesn't.he has issues.中文翻译 There______a fantastic concert.A.have just been B.has just beenC.have just had D.has just had 托尼,你在搞什么鬼?Tony,what are you_____ ______?他独自走来走去.He ______ around_______.