at the first time和at first time 的区别?

题目

at the first time和at first time 的区别?
我们承诺：把第一次和每一次都做到最好!
怎么说?
1.We promise:do best at the first and every time
2.We promise:do best at the first and every time
还有,do前用不用加to

答案

do前不加to,这里只指祈使句,所以直接以动词开头.
at the first time 指在第一次
如一个人打算分3次做一件事情,at the first time, he made a ..., but failed. at the second time, ..., failed again.
要加冠词the,first是序数词,应该要加的．