他总是称他爸爸为“老头子”。

He always ___referred ___to his dad as "the old man."

在你的信中，你提到了一家去年关闭的酒店。

In your letter, you ___refer ___to a hotel that closed last year.

发言者简要提到了团队合作的重要性，然后继续讲其他内容。

The speaker briefly ___referred ___to the importance of teamwork before moving on.