INCREASED FROM 3 BILLION IN 1959 TO 6 BILLION BY 1999

1. - BÀI GIẢNG NGAN HANG CAU HOI LOP11
BÀI GIẢNG NGAN HANG CAU HOI LOP11
1. The world’s...increased from 3 billion in 1959 to 6 billion by 1999. A. population B. is population C. populations D. arepopulation