[Tanialoves]

Hello. I would really be grateful if you could help me solve the problem. I'm tutoring a man who needs English to communicate with his clients. During a class (60 min.) we usually manage to do 4-5 tasks: 1. speaking (discussion of the text he reads at home); 2. listening (he listens to a story and retells it or does some tasks based on it); 3. reading (he reads an article that is connected with his profession and then he expresses his point of view); 4. speaking (here I give him different activities that may help him improve his speech speed.) When he is speaking to me - he's doing quite well. I'm satisfied with what I hear. But when speaking to his clients he gets very nervous and anxious; as a result he mixes all the tenses, forgets the words and expressions he needs. He starts speaking in long and very complicated sentences. What should I do to help him overcome his anxiety?