Before winter comes, most of butterflies travel ________ the cold weather ________ the warm weather. (  )

A．from; to

B．from; and

C．to; from

I am happy ________ go to the zoo ________ my best friend. (  )

A．to; and

B．to; with

C．/; and

按要求完成句子。
1. I want to go to Yunnan on summer vacation. (对划线部分提问)
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2. Will you spend a day at Ocean World? (作肯定和否定回答)
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3. Have you ever been to China? (作肯定回答)
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4. Liu Xiang runs fast. Han Fei runs slowly. (用一句话来表达)
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5. I know many stories about China. (改为一般疑问句)
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