组卷网 > 初中英语综合库 > 单词辨析 > I > if (是否)
题型:单项选择 难度:0.65 引用次数:95 题号:14219319
—I’m not sure ________ you eat vegetables every day.     
—I know ________ they are good for our health, so I eat them every day.
A.if; thatB.that; ifC.that; thatD.if; if

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