1 câu trả lời
We can:
+Stop littering the trashes on the rivers and lakes.
+Cleaning the water in the rivers and lakes.
+Joining some volunteer group to propaganda the harms of water pollutiion to everyone.
+Warning and penalizing the factories which are dump wastewater into the rivers and lakes.
#Sa
Câu hỏi trong lớp
Xem thêm