ALDS is said_______the biggest health challenge to both men
ALDS is said_______the biggest health challenge to both men and women in that area over the past few years.
为什么用 to have been 不用that it has been?
求详解
为什么用 to have been 不用that it has been?
求详解
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chenjason007 幼苗
共回答了153个问题 举报
said to be 是个固定词组，意思是“被认为”（这里 said to have been是该组完成时态）
如果用 that it has been, 原句变成： ALDS is said that it has been.... 语法上不通。记住这个原则就好了：is said 后面必须加to be。 只有said单独用的时候（之前没有be动词）后面才加that。...
如果用 that it has been, 原句变成： ALDS is said that it has been.... 语法上不通。记住这个原则就好了：is said 后面必须加to be。 只有said单独用的时候（之前没有be动词）后面才加that。...
1年前
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