最常用的课堂英语对话，全方面的

对不起，我迟到了！

Sorry, I'm late!

谢谢。    不用客气。

Thank you./Thanks a lot.    You are welcome. / That's all right. / No worries.  

我可以进来吗？

May I come in, please?

你好吗？你今天过的怎么样？

How are you? How's your day? How's it going?

很高兴见到你。Nice to meet you.

我挺好，还行。你呢？

I'm fine/good/alright. And you?

我今天觉得不舒服，可以请假吗？

I don't feel well today, can I have a day-off, please?

打扰一下，XX先生，我对这个问题不太明白。

Excuse me, Mr.XX, I'm confused about this question. / I don't understand.

我没明白你的意思。    现在我明白了。

I didn't get it.    Now I got it.

你可以再讲一遍吗？你可以重复一下吗?

Can you please explain it again? Can you repeat it, please?

我的意见是.../ 我的观点是...

In my opinion,  ... /  In my point of view, ....

请等一下。

Hang on for a second please.

餐厅/厕所在哪？

Where's the dining room / toilet?

介意我坐这儿吗？    不，一点也不。

Would you mind if I seat here?    No, not at all.

你们今晚要出去（玩）吗？    我可以一起吗？    当然可以。

Are you guys going out tonight?    Can I join?    Ya, sure!

你可以借我一直笔吗？    你有多余一支笔可以借给我吗？

Can I borrow your pen, please?    Do you have a spare pen I can borrow?

还有什么你想知道，把中文打出来，我帮你翻译。