请问为什么：make an effort to后接动词原形~look forward to后接v-ing ?

make an extra effort sandy 请问为什么：make an effort to后接动词原形~look forward to后接v-ing ? make an effort to do sth 和 make every effort to do sth 的区别请问下几句句子的区别 make an effort to do sth make every effort to do sth spare no effort to do sth有没有 spare no effort doing sth 的 还请不清楚的人不要回答, 有没有make an effort for啊 If you don't make an effort now这句话中为什么加make?我是英语白痴~ make efforts与make an effort的区别是什么 to make an extra effort用中文怎么翻译 这句英语“Bingbing,make an extra effort!I support make efforts/an effort to do和in a common effort的中文 make an effort与make some effort的区别是什么?谢谢两位朋友的作答。我想弄明白这两种用法在努力程度上有区别吗？make an effort和make some effort哪一个付出的努力更大？ Who can help me 词组make an effort to do sth.为什么加了special 就变成 make a special effor to do sth. make efforts to do sth.为什么effort要加s? make every effort make a great effort i have fallen behind in my study,so i have got to___A.make an effort B.make efforts C.study hard D.make effort making no effort 和 make every effort 请问We should make every effort to protect our environment.这个句子应该用we are should 为什么?该用 to protecting our environment.为什么? in an effort