Listen and complete the conversations with the expressions in the box. Then practise them in pairs.
Gap-fill exercise
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Can you clarify Could you explain it If you're successful in other words to put it another way