when did you hurt yourself last?这句话为什么不能用when have you hurt yourself last?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/05 21:34:13
when did you hurt yourself last?这句话为什么不能用when have you hurt yourself last?
xJ@_%ޗB|H#J Ix[ZSh!A٦}9 ݈֣ f4[?̦R?+mj;p\q4 u(6N,ˌL| /ç2}v@un]Ce~E E H_͌yﰎOjA]"@w+Rٴ%ɟW<*F0l,8 D%QcIJ󐓁HHbOb$

when did you hurt yourself last?这句话为什么不能用when have you hurt yourself last?
when did you hurt yourself last?这句话为什么不能用when have you hurt yourself last?

when did you hurt yourself last?这句话为什么不能用when have you hurt yourself last?
when 不能用于完成时.因为用when提问,就是想得到具体的时间,而完成时的时间概念都是笼统的,非具体的,如“已经,曾经,以前”等等.所以,记住结论:“when 不能用于完成时”!