1. I haven't heard him since August
=> I
2. I haven't seen him since I was a student
=> I last
=> The last time
3. It is the first time she has eaten this kind of meat
=> She has
=> She hasn't
4. I haven't eaten this kind of food before
=> This is the first
=> I have
5. This is the first time she has read this book
=> She has
=> She has not
1. I haven't heard him since August
=> I last heard him was in August.
2. I haven't seen him since I was a student
=> I last saw him when I was a student.
=> The last time I saw him was I was a student.
3. It is the first time she has eaten this kind of meat
=> She has never eaten this kind of meat before
=> She hasn't eaten this meat before
4. I haven't eaten this kind of food before
=> This is the first time I have eaten that kind of food .
=> I have never eaten that kind of food before
5. This is the first time she has read this book
=> She has never read this book before
=> She has not read this book before
1. I haven't heard him since August
=> I last heard him was in August.
2. I haven't seen him since I was a student
=> I last saw him when I was a student.
=> The last time I saw him was I was a student.
3. It is the first time she has eaten this kind of meat
=> She has never eaten this kind of meat before
=> She hasn't eaten this meat before
4. I haven't eaten this kind of food before
=> This is the first time I have eaten that kind of food .
=> I have never eaten that kind of food before
5. This is the first time she has read this book
=> She has never read this book before
=> She has not read this book before