In fact, most people in some developed countries are ___ than they were two years ago because of the global financial crisis. 

At a very young age, Professor Field used to__________  books on radio. 

______ in color, the garden looks dull in this late fall.

Our teachers are really ______. They often work in their office far into the night.

The ________　temperature of the human body is about 37 degrees centigrade.