题目

(2020·吉林省梅河口市第五中学等校高三上学期联考)It was only when we took him to the vets on Saturday morning and got his chip scanned ________ we found out for sure. 答案：that　本句使用了强调句型，被强调部分为“when we took him to the vets on Saturday morning and got his chip scanned”，故填that。

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