--- Have you got ______ ready for the sports meeting?--- Not yet. We still have _____ to do.
We are making a plan _________ water clean.
Let’s _________ what we can do to save the animals in danger.
--- How can you _________ there? --- ___________air.
One of the most famous places of interest in China _________ the Palace Museum.
---__________ does it take to finish your homework? --- For an hour.