THE WORLD'S POPULATION______CONSIDERABLY SINCE 1950. A. IS INCREA...

15. - 25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN
25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN

15.

The world's population______considerably since 1950.

A. is increasing

B. increased

C. has increased

D. has been increased