She struck the matches to light the candles.

她划了火柴点燃蜡烛。

Ting Ting, light the candles.

婷婷，把蜡烛点着。

They light the candles because there is no electricity.

他们点上了蜡烛，因为没有电。

A : Peter , may I light the candles now , or would you like to do it yourself?

彼得，我现在点蜡烛好吗？或者你想自己点吗？

My father helped me light the candles and I made a sweet wish which was only known by me.

我的父亲帮我点亮了蜡烛，并且我许了一个只有我自己知道的甜蜜的愿望。