可以,for 和 because 都能用来表达 ‘因为’
He stopped writing,for his pen had run out of ink.
He stopped writing because his pen had run out of ink.
他不写了,因为他的笔没有墨水了
He stopped eating,for he was already full.
He stopped eating because he was already full.
他不吃了,因为他已经饱了.