IF TUAN ________________ TO AUSTRALIA, HE WILL HAVE A GOOD OPPORTUN...

7. - KIEM TRA 1 TIET LAN TA BAI 4,5,6
KIEM TRA 1 TIET LAN TA BAI 4,5,6
7. If Tuan ________________ to Australia, he will have a good opportunity to improve his English.A. comes B. come C. came D. had come