Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.

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问题 Believe it or not, when first (introduce) ______ to Europe, tomato was thought to be poisonous.

选项

答案introduced

解析本题考查过去分词的用法。过去分词常表示被动意义。本题中主语tomato是动作introduce的承担者，为被动关系。故此句的留空处填入introduced。

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大学英语三级A级

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