introduce|introduces|introduced|introducing

我想介绍一下我的小儿子，马克。

I'd like to ___introduce my younger son, Mark.

我们被互相介绍认识，然后聊了聊各自的国家。

We were ___introduced to each other and we talked about our home countries.

我们老师每节课开始时都会介绍新课。

Our teacher ___introduces the new lesson at the beginning of each class.

她正在向全班介绍一种新的英语教学方法。

She is ___introducing a new method of teaching English to the class.

让我自我介绍一下。我叫露西。

Let me ___introduce myself. My name is Lucy.