1. To talk about imaginary past situations, use ____ in the condition part and ____ in the result part. This structure is known as Third Conditional. 2. We use had+ V3 in the condition part and ____ in the result part when some imaginary past action could influence the present situation. This structure is known as Mixed Conditional.

Rule

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排行榜

視覺風格

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切換範本

恢復自動保存: ?