单项选择题
The weather in China is different from （）
A. in America B. one in America C. America D. that in America
单项选择题 The doctor suggests that a person （） exercises every day if he wishes to be healthy.
单项选择题 The used old small typewriter is really （）.
单项选择题 The birth rate in a city （）to fall as its gross domestic product (GDP) rises steadily.
