he has became a doctor,which he want to be.这句话错了吗?错哪里?

he became a bus driver.这句话可以说成he has became a bus driver吗? He has turned a famous writer还是 He has became a famous writer?为什么 Before he became a teacher,he has been a salesman for years 改错 a doctor has a son ,he also became a doctor after graduat ion, After____that unforgettable love,he became more understanding.A.has experiencedB.experiencingC.experienced After（ ）that unforgettable love,he became more understanding.A.has experiencedB.experiencingC.experienced He became a dentist in 2000(保持原句意思)He has ___ ___ a dentist ___ about five years He became a lawyer in 2000.(保持句子原意） He has ------- ------a lawyer ------ about 9 years. 保持句意不变 He became a lawyer in 2000He has _____ ______ a lawyer for 9 years he has became a doctor,which he want to be.这句话错了吗?错哪里? 一篇英语作文：是关于职业的to be a doctor you have a doctor gets up at eight o clock and goes to the hospital .He works for 4 or 5 hours and then has lunch at the hospital.In the afternoon he works for two hours and then he goes home.Doct _____ (late), he became a doctor He became a teacher 的句式结构 翻译how did he became a teacher he became a dentist in 2000.（保持原句意思）he has ____ ____ a dentist _____ about five years. He became a bit angrily,还是angry?He became a bit angrily/angry. 新概念英语2册35课有一句话是：He became a bus driver and he has not regretted it.我有俩个问题：1.and连接的前后应该时态已知,and前面became是过去式,后面应该用had啊!2.能否改成：He became a bus driver and he 定语从句,He has written three books on computer networking,____one became a bestseller and was published in twelve languages A.in which B.of which