We usually say thank you and reply to thank you with intonation going down at the end. When somebody says ‘Thank you' for doing something, we sometimes reply, ‘It's a pleasure', or ‘My pleasure.’ Some other responses to thanks are: ‘You're welcome', ‘That’s all right,’ 'That’s OK.’

Practise ways of saying thank you and responses to thanks with intonation going down on the last strong stress. First listen and repeat the possible responses.
It's a pleasure.          My pleasure.          You’re welcome.
That’s all right.          That's OK.
EXAMPLE

A: Thank you for lending me your television.

B: It's a pleasure.

1. Thank you for mending my television.

2. Here’s your measuring tape. Thank you so much.

3. I finished "Treasure Island'. Thanks.

4. It was great to use your garage. Thanks a lot.

5. Thanks for the massage. It was great.