set的三个形式？
第三人称单数：sets
复数：sets
现在分词：setting
过去式：set
过去分词：set
三、双语例句
1.We have to set a time limit for the work.
我们得为这项工作规定个期限。
2.I only need one more card to complete the set.
我只差一张卡片就配齐全套了。
3.As people get older, they get set in their ways.
随着年龄的增长，人就积习成性。
4.It was the first time I had set foot on American soil.
那是我第一次踏足美洲大地。
