not...until的时态
问题描述:
not...until的时态
I didn't go to sleep until I finished my homework可不可以说成 I didn't go to sleep until I had finished my homework?
答
not ...until ...后面要接一个时间点,直到(某个点)……才……
所以这里不能用完成时,用一般过去时表示完成作业的那一刻才对.