he has become the doctor which he wanted to be .
1,has 后不能接过去式 要不就是has become 或 had became ,综合后句是has become .
2,which 引导从句不加逗号.
3,过去想成为医生 所以用wanted
he has become the doctor which he wanted to be .
1,has 后不能接过去式 要不就是has become 或 had became ,综合后句是has become .
2,which 引导从句不加逗号.
3,过去想成为医生 所以用wanted