查人人中国名人网薄板整平机二手收购:单句改错
来源：百度文库 编辑：查人人中国名人网 时间：2024/04/27 21:29:26
It is four days since mother accepted the operation.
对 是accepted错了 但是应该什么词呢
一句话只能改一处
对 是accepted错了 但是应该什么词呢
一句话只能改一处
It has been four days since my/our/his/her mother accepted the operation.
It has been four days since mother had accepted the operation.
因为SINCE后面的从句是更前发生的事，所以要用完成时。而It has been 4days是指完成延续至今的事。所以整句应为完成时。
It has been four days since mother accepted the operation.
It has been four days since mother accepted the operation
同意楼上的～‘SINCE（自从）一般都是出现在完成式的句子中 除了另外几个SINCE的中文意思
It is four days since mother =has= accepted the operation.