COLUMBUS______________ AMERICA MORE THEN 400 YEARS AGO.A. DISCOVERE...

10. - BAI KIEM TRA CHAT LUONG DAU NAM KHOI 10
Lớp 10 BAI KIEM TRA CHAT LUONG DAU NAM KHOI 10
10.Columbus______________ America more then 400 years ago.A. discovered B. has discovered C. had discovered D. was discovering