Then again, students selected interlocutors according to order 3-4 pairs of teachers until the sample student teacher fluent in 3 pairs, such conversations in front of the class.
Students then choose a new conversation with another 3-4 orders of teachers and liquidity. Teachers, students sampled three pairs conversations such class.
Then the students choose the new discussion again 3-4 pairs in order of teachers fluently. I sampling students 3 pairs. To say such conversations in front of the class.