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

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

参考解析

解析:
本题考查非谓语动词作状语的用法。句意:相信与否,当马铃薯第一次被引进到欧洲时,人们认为它是有毒的。introduce与tomato之间是一种逻辑上的被动关系,故填入introduced。

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