英语口语中常用的语气助词包括"Well"（表示思考或回答问题），"Oh"（表示惊讶或兴奋），"Hmm"（表示思考或犹豫），"Ah"（表示理解或领悟），以及"Well then"（表示转折或决定）。这些语气助词可以使对话更加生动有趣，让表达更自然流畅。

1. Well

"Well" 是一种常用的语气助词，它可以用来表示思考、回答问题或者打断别人的话。例如：

Well, I think we should go to the cinema tonight.

Well, that's a good question. I'm not sure.

Well, actually, I have something to say.

2. Oh

"Oh" 是表示惊讶、惊奇或者兴奋的语气助词。例如：

Oh, I can't believe it!

Oh, that's so cool!

Oh, really? That's interesting.

3. Hmm

"Hmm" 是表示思考、考虑或者表示犹豫的语气助词。例如：

Hmm, let me think about it.

Hmm, I'm not sure if I can come.

Hmm, that's a difficult question.

4. Ah

"Ah" 是表示理解、领悟或者恍然大悟的语气助词。例如：

Ah, I see what you mean.

Ah, now I understand.

Ah, that's why you did it.

5. Well then

"Well then" 是表示转折、决定或者引出话题的语气助词。例如：

Well then, let's go to the park instead.

Well then, I guess we'll have to cancel the party.

Well then, have you heard about the latest news?