___________ THE THI VAI RIVER IS AWFULLY POLLUTED, ITS WATER IS NOT...

1. - DE TUYEN SINH LOP 10 MON ANH VA DAP AN
DE TUYEN SINH LOP 10 MON ANH VA DAP AN
1. ___________ the Thi Vai River is awfully polluted, its water is not fit for fish to survive.A. So that B. Although C. Since D. If