---There is a tall building on Taoze Road. Do you know?---I know it. It ________ has 10 floors.

---- Is the physics problem _________?---- Yes, I can work it out _________.

 Breakfast is _______  meal of the day. It gives us energy after a long night without food.

We’re tired because we have ________ yin.

---What’s the low-carbon(碳) life style like?----Save        energy, produce            carbon.