He became a doctor.这里的a能不能省略?那doctor换成king是不是也是一样的道理?都不能省略a的?

_____ (late), he became a doctor a doctor has a son ,he also became a doctor after graduat ion, he has became a doctor,which he want to be.这句话错了吗?错哪里? 选哪个?He became a doctor,__(which/who)he had always intended to be. He became a doctor after he () up.RT,用grow填空! it is ten years since he became a doctor同义句He became a doctor ___ ___ ___ ___.(4条线) He wanted to become a singer but f_,she became a doctor. he wanted to bacome a singer but she became a doctor _____ 同义句转换.My brother became a doctor when he was 24.My brother became a doctor （ ） （　）（　）（　）　24. 同义句转换.My brother became a doctor when he was 24. He became a country doctor,as he had always wanted.as...后面的句子作什么成份? he became a bus driver.这句话可以说成he has became a bus driver吗? He became a doctor.这里的a能不能省略?那doctor换成king是不是也是一样的道理?都不能省略a的? 求帮忙分一下句子成分：he became a doctor in 1997.就是说哪部分是主语、谓语、宾语.. He is a doctor He wanted to become a singer but he became a doctor ____ .空内只能填一个词.拜托各位.帮个忙3.. He became a doctor when he grow还是grew upgrow up是个固词,但由于有when’在而且前面是过去时,怎么办? at the time 可以做连词用吗he became a doctor （by） the time he is 31.by那个空可以填at吗