IF WE ______ WASTING WATER , THERE WILL BE SHORTAGE OF FRESH WATER...

05. - TRAC NGHIEM ANH 9 HKII 2
TRAC NGHIEM ANH 9 HKII 2
05. If we ______ wasting water , there will be shortage of fresh water in a few decades .A.turn on B.turn off C.go on D.look for