※ 引述《ostracize (bucolic)》之铭言：
: ※ 引述《neversayyes (亲爱的你)》之铭言：
: : My daughter ____ her homework since 3 p.m. when I got home.
: : 整个句子显得很不自然很怪XD
: 没错!整个句子显得很不自然很怪!
: 台湾就是有一堆奇怪的英文老师，连简单通顺的句子都写不出来，
: 还老是想出一些怪考题，来考学生进阶的文法。
: My daughter has (already) done her homework.
: My daughter has been doing her homework since 3 p.m.
: When I got home (at 5 p.m.), my daughter was doing her homework.
: She had been doing her homework since 3 p.m.
: When I got home, my daughter did her homework.
: (I got home, and then my daughter did her homework.)
真的。 此外，o大能列出各种情境，文法&时态概念也相当清楚
我再补充原PO 一些资讯
因为有过去的时间点 when I got home & since ...，强调到家时，女儿还一直持续在做
功课，用过去完成“进行“。
但也因为有since这类的持续时间词 (ex. for xx hours…)，用过去完成 （而无进
行）也能清楚表达一直做功课到我回家时仍持续著的意思，故可用“过去完成”来代替
“过去完成进行”
所以在此情境下:
(1) 用“过去完成”&“过去完成进行”都可
(2) 因为有when I got home，用“现在完成”的话，反而时序会错乱，文法不通
另外， 假如这句没有 since， 用“过去完成”&“过去完成进行”则有不同语意，差别
在于表达有无一直持续到 我回家时还在写功课。