IT TOOK HIM SIX YEARS TO ………AS A DOCTOR AND NOW HE IS A GOOD DOCTO...

12. - DE HSG ANH8 DAP AN 12. - DE HSG ANH8 DAP AN
Lớp 8 Tiếng Anh DE HSG ANH8 DAP AN
12. It took him six years to ………as a doctor and now he is a good doctor.A. make B. do C. qualify D. become