我们每个月都会捐一些钱给当地的动物收容所。

We ___contributed some money to the local animal shelter every month.

缺乏睡眠可能导致了她的注意力不集中。

Lack of sleep may have ___contributed to her poor concentration.

她为这本科学杂志撰写了一篇关于气候变化的文章。

She ___contributed an article about climate change to the science magazine.