阅读WRITING WORKSHOP中的材料，选择最佳答案。
1．What is the main purpose of factory farming?
A．To keep animals in buildings.
B．To increase production.
C．To suffer from less diseases.
D．To use fewer workers.
2．What is the opinion of opponents about factory farming?
A．It is a lot cheaper than traditional farming.
B．It provides more food for a world population.
C．It costs much less than organic farming.
D．It is not friendly to the animals.
3．What is the writer's attitude towards factory farming?
A．Positive. B．Critical.
C．Approval. D．Unhappy.
[答案] 1—3 BDB
