I looked forward to the （）of their theories.

单项选择题Our challenge is to（）those voters and inspire them to join our cause.

A.demonstrate
B.imitate
C.motivate
D.illustrate

单项选择题Forests provides （）materials for human activities.

A.crude
B.coarse
C.rough
D.raw

单项选择题Retailers will need to rethink their strategies as（）shoppers demand price-competitive goods.

A.thrifty
B.moist
C.barren
D.digestive

单项选择题The National Institute of Health is discussing ways of tackling the problem of childhood（）.

A.cafeteria
B.membership
C.flavor
D.obesity

单项选择题To （）how the system works，Bruce shows off the prototype of a 3D analysis tool.

A.dedicate
B.distribute
C.demonstrate
D.cultivate