The key answer of exercise 4

a)

1. The interpreter asked for notes to be sent beforehand, but the speaker did not answer and did not send the notes.
2. The speaker switched between Russian and Turkish and the audience could not understand him.
3. The interpreter could not understand the speaker half the time.

b)

1. I was concerned because he hadn't provided me with any notes beforehand
2. I had told him it would be useful if I could have the notes for his talk in case of any problems.
3. The organisers asked him to submit his slides ahead of time, but he didn't acknowledge the requests.
4. ... he insisted on switching between Russian and Turkish.
5. He was speaking about whether there could be a global blackout next year.
6. Hardly any of the delegates could understand what he said.
7. I didn't understand half the time either, and I thought I would die of embarrassment.
8. Up in the booth, we discussed whether we should stop even trying to translate.
9. My booth mate suggested sending / that I sent / I should send him a note asking him to stick to one language.
10. In the end I was really sorry I had agreed to do this particular job.

c)

1. 1, 3, 6, 7
2. 2, 5, 8
3. a) 10; b) 3; c) 9; d) 4
4. 3
5. 8
6. 5