After he has retired,he will devote himself to gardening.为什么要用完成时?

After he has retired,he will devote himself to gardening.为什么要用完成时? As the saying goes,one is never too old to learn.After he ______ ,he will devote himself to gardening.A.retired B.has retired C.will retire D.had retired 为什么? After he retired,he lives a_________ (简朴的) life. my father has retired now he has more l time after retired,he ……可以用么 My grandfather __ after he worked for over forty years .应填入retired还是retires.为什么呢? 短文改错 this sunday,i went visit my uncle who was settle down in a village since he has retired. My grandpa has played Erhu s___he retired. after he has finished his homework,he plays basketball.句中的he has after （he has ）finished his homework,he plays basketball.句中的he has After he has a rest,he goes on working.是什么意思? He retired from active work after a long period of __1 illness 2 disease 3 sickness 4 trouble为什么要选第一个?谢谢.请再帮我翻译一下这句话. After he retired from office,rogers __painting for a while,but soon lost interest.Atook up B saved up C kept up D drew up还有句子 He____ ____ ____the company after his father retired.(掌管了) 英语的疑难杂症,1,for the time being 2,Have you ever been to Switzerland?为什么要用ever?3,是有关于现在完成时的,He has retired now.他现在已经退休了.是否代表刚退休不久,而不用retired和had retired?是否现在完 After lunch ,he has a r_______for half an hour He never has ___(some)fun after his parents leare. after lunch he has math.否定句是? after lunch he has math.(改为否定句)