The girl had been suffering from the lung cancer, yet she acted as if nothing__________ to her while we were together.

－It’s one of the things in the world to stay with friends.－I agree. It always makes us relaxed.

Now mobile phones are not so expensive as they _______ to be.

The cottage will be cold.Make sure ___ the heater.

Over80percentofthepopulationofChina _____peasants.