IF YOU WANT TO ATTEND THE COURSE, YOU……THE EXAMINATIONHAS TO HAVE TO HAD TO COULD

51. - BAI TAP ON TAP KIEM TRA TRAC NGHIEM ANH9 CA NAM
BAI TAP ON TAP KIEM TRA TRAC NGHIEM ANH9 CA NAM
51. If you want to attend the course, you……the examinationHas to have to had to could