为什么这里用done而不是d o或者did呢?

母语人士的回答
Rebecca
done是动词d o的过去分词。它在句子中与has 、 had或have一起使用。正如你所看到的,脚本说until you'd [you had] actually done the work !当然,你也可以在这里用did代替had done !即使这样写也不会改变句子的意思!例子: If you had done your homework, you wouldn't have gotten in trouble with your teacher. (如果你做了作业,你就不会被老师骂了。) 例子: I did my homework, so I didn't get in trouble with my teacher. (我做了功课,所以我没有被老师骂。)