11.提供(帮助等)和应答 Offers and responses

a.Can I help you?

What can I do for you?

Here, take this/my…

Let me…for you.

Would you like some…?

b.Thanks. That would be nice/fine.

Thank you for your help.

Yes, please.

c.No, thanks/thank you.

That’s very kind of you, but…

12.请求允许和应答 Asking for permission and responses

a.May I…?

Can/Could I…?

b.Yes/Certainly.

Yes, do please.

Of course (you may).

That’s Ok/all right.

c.I’m sorry, but…

You’d better not.

13.表示同意和不同意 Expressing agreement and disagreement

a.Certainly/Sure/Of course.

Yes, please.

Yes, I think so.

b.That’s true/OK.

That’s a good idea.

I agree (with you).

c.No, I don’t think so.

I’m afraid not.

I really can’t agree with you.

14.表示肯定和不肯定 Expressing certainty and uncertainty

a.I’m sure.

I’m sure (that) …

b.I’m not sure.

I’m not sure whether/if…

c.Maybe/Perhaps