HE HAS BEEN WORKING AS A DOCTOR SINCE HE _______ FROM HA NOI MEDICA...
1. He has been working as a doctor since he _______ from Ha Noi Medical University.
A. graduated
B. had graduated
C. graduates
D. has graduated
1. He has been working as a doctor since he _______ from Ha Noi Medical University.
A. graduated
B. had graduated
C. graduates
D. has graduated