it was until I received the letter that I know how worried he was.这句话哪里错了

分类: 作业答案 • 2022-01-09 18:03:51

问题描述：

答

过去式,know改为knew除了这个错误还有吗“It was not until。。。that。。。”。was后边加not这个句式才正确意为“直到。。。才。。。”