在高考口语考试中，你可以使用以下表达：

问候和介绍 ：

Hello, everyone!

My name is [Your Name]. I am a graduate from [Your High School] and I major in [Your Major].

表达观点 ：

How come...

I see.

I quit!

Let go!

Me too.

My god!

No way!

Come on.

Hold on.

I agree.

Not bad.

礼貌用语 ：

Nice to meet you.

How do you do!

Good morning / Good afternoon!

结束语 ：

That's all. Thank you.

这些表达可以帮助你在高考口语考试中更自信、更流畅地进行交流。记得在考试前多加练习，保持自信，注意发音和语调，这样会更有助于你取得好成绩。