1.The twins and I went to the park yesterday. Three of us had a good time there.
2.Little Jack felt a bit sick,so his mother sent him to the bed early.
3.I didn't think my mum missed to talk with me.
Three of－－－》The three of to the bed --->>tobed to talk --->>talkingthree of us"我们中的三个"（我们一共不止三人）（我们至少有四人）the three of us"我们三人"（我们一共只有三人）go to bed ,be sent to bed"上床睡觉"习惯用语，bed表示“睡觉”一般不用the.sent him to the bed 表示“把他送到床边”意思不同。miss doing sth."错过做。。。" miss 接动名词。欢迎探讨词法语法问题。
