問題：The professor explained to us that sugar water ( ) not freeze at a temperature of 0℃. 出題元【英文法検定】

出題元【英文法検定】

問題

The professor explained to us that sugar water ( ) not freeze at a temperature of 0℃.

Ｑ：The professor explained to us that sugar water ( ) not freeze at a temperature of 0℃.

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