Understand what the teacher says :

Sit down and get ready!

Could you sum up / remind me of what we said last time?

Raise your hand, please?

Speak louder, please?

Make a sentence, please.

Can you rephrase (say differently), please?

Underline the verbs.

Tick the right answer.

Sum up the text.

Justify your answer.

Pens down, stop writing.

Ask a question to your classmate.

Could you say that in your own words?

Any comments? What do you think about this?

Do you agree with X? Does anybody agree with X?

You did not hear :

Could you speak up / speak more loudly, please?

Sorry, I wasn’t listening. Could you say that again, please?

Excuse me, what did you say?

Could you repeat your question?

Sorry, I didn’t catch the last word.

You did not understand :

Sorry, I don’t understand. Could you explain that?

I’m afraid I didn’t catch / get / understand what you said.

Sorry, I didn’t understand.

I’m terribly sorry but I haven’t understood the question.

Could you rephrase the question?

Would you mind speaking more slowly / a bit slower, please?

Excuse me, could you spell that word, please?

Can you write it on the board, please?

What does the word ... mean?

You don’t know how to say it :

It’s difficult for me to explain it in English, but ...

What’s the English for ... ?

How do you say ... in English?

You don’t know what to say :

I think I need some more time to prepare my answer.

Sorry, I don’t know (what to say).

I have no idea (at all about that).

I agree with X, but I have nothing to add / nothing else to say.

You’re not sure :

I’m not sure / I may be wrong, but I think / I believe that ...

What I’m trying to say is ... / What I mean is ...

Giving yourself time to think :

Er ... / Well, ... / Well, I think ... / Hmm ... let me think ...

I must admit (that) I don’t know much about this issue, but ...

When someone makes a mistake :

Be careful! You should have said ...

Mind your “s”!

You want to apologize :

Sorry, I’m late.

I apologize for being late.

I’m afraid I’ve forgotten (to do) my homework.

I’ve forgotten my book / my pen. Can somebody lend me one?

Useful expressions :

Excuse me, can I ask you a question?

I don’t feel well. May I open the window / go out?

Could you switch on the light / off the light, please?

Could you please move aside? I can’t see the blackboard.