HE COULDN'T GO FAR BECAUSE HE WAS AFRAID OF _____A. TO FLY B. FLY...

13. - BAI ON TAP KIEM TRA 1 TIET KHOI 10 PHAN TRAC NGHIEM KHACH QUAN
BAI ON TAP KIEM TRA 1 TIET KHOI 10 PHAN TRAC NGHIEM KHACH QUAN
13. He couldn't go far because he was afraid of _____A. to fly B. flying C. be flying D. fly