【題目】It is very __________ (有意義的)for humans to protect wild animals.

【答案】meaningful

【解析】

句意:保護野生動物對人類來說是非常有意義的。

觀察句子,這里應(yīng)該缺少一個詞做表語,結(jié)合中文提示“有意義的meaningful adj.”,形容詞做表語符合語法,故答案為meaningful。

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