⑴How do we save water?            A. He's drinking water.

⑵Where does water come from?             B. We use water to grow crops.

⑶What do you want to be?             C. We can turn off the tap when we don't use water.

⑷How do we use water?             D. It comes from the sea.

⑸What is he doing?             E. I want to be a fireman.