Of the two coats，I'd choose the ________ one to spare some money for a book.(2010·四川)

 Scientific research shows that animals can show         emotions like human beings. They are sometimes lively, and sometimes bad-tempered.

—It’s amazing that an Australian girl sailed round the world alone in about 200 days. —That’s an inspiring story. Her courage is really _______.

The present system no longer meets the changing needs of our customers; we have to make a (n)          management system.

Some plants are vey ____ to light; they prefer the shade.