The Eskimo is perhaps one of the most trusting and considerate of all Indians but seems to be（）the welfare of his animals.

单项选择题He spoke so（）that even his opponents were won over by his arguments.

A. bluntly
B. determinedly
C. emphatically
D. convincingly

单项选择题Fuel scarcities and price increases（） automobile designers to scale down the largest models and to develop completely new lines of small cars and trucks.

A. persuaded
B. prompted
C. imposed
D. enlightened