...interest of advancing the interest of the group.请问一下老师，这里的service是怎么个用法？不太理解“lies in the service to individual interest of advancing the interest of the group”这部分的意思。
All he wants to do is make love.All you're going to do is highlight it.All I have to do is learn English.我注意以上句子is后跟的都是动词原形，我不了解这一语法背后的知识，请老师解疑答惑，如果举几个例句方便理解就更好了，感谢！
Beard helped out to create the goal of his life, allowing him to weave past five England players, trick the goalie with a dummy—tic—and put the ball in, tac.请问这里的trick和put为什么用动词原形?是不定式的省略吗？可这是三个不定式并列啊?
今天在“高三网”上看到关于make的用法总结---不定式短语在主动结构中作宾语补足语时，不带to；但在被动结构中作主语补足语时，不定式短语则必须带to。如：Filth and high prices have combined to make London and other cities depressing places to...