句型转换。1. My favourite season is spring.（就画线部分提问）
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2. I like to run in spring.（变成一般疑问句）
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3. We sing a song.（变成祈使句）
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4. Winter is my favourite season.（变成一般疑问句）
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5. Why do you like summer?（自由回答）
________________________________________________1. What's your favourite season?
2. Do you like to run in spring?
3. Let's sing a song.
4. Is winter your favourite season?
5. Because I like to sit in the sun.(供参考)