標題: [問題] 條件句的動詞 [打印本頁]

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作者: claire165    時間: 2010-1-25 15:48     標題: 條件句的動詞

條件句的動詞
If you ______ in America, you must have found that Americans are almost all colors and races.

請問這個空格填 were 還是 had been?

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