У меня тоже та проблема, надо чтоб из последних букв создать слова.
1. My uncle said that he came back from the Caucasus
2. He said that he had spent a forthight in the Caucasus
3. She said that she had got a good camera'
4. They said that they had made good progress in English'
<span>5. Ann said that she had just met Boris in the street'</span>
1 mustn't
2 must
3 can't
4 must
<span>5 mustn't</span>