同义句转换。 1. He began his piano at the age
题型：句型转换
问题：
同义句转换。
1. He began his piano at the age of three.
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2. He spent six years learning English.
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3. Mr. Charter gave us a lesson in place of Ms Even yesterday.
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4. Lang Lang's success came at a price.
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5. He always expresses his gratitude to his parents.
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