---Wow! They look so delicious!---_____.
The water behind the Three Gorges Dams (三峡大坝) should be ______ higher than downstream(下游)。
There are _______ days in a year.
---How many teachers are there in your school? --- __________. , but I'm not sure.
There are _________ doctors and nurses working hard in that hospital.
--- What's one fourth and a half, do you know? --- Yes, it's _________.