September 18,1931 is the day that we'll never forget.为什么用that而不用when引导
问题描述:
September 18,1931 is the day that we'll never forget.为什么用that而不用when引导
答
因为the day是forget的宾语,需要一个代词做关系词,when是副词,不能作宾语,that代词可作宾语