Change these to indirect speech:

1. I saw him once before in London. (I knew)

2. Shakespeare didn't speak French. (The professor said)

3. He died two years ago. (When I got there, I found out)

4. Three thousand years ago there were tigers in England. (It said on this TV programme)

5. Somebody threw a bomb at the Prime Minister. (It said on this morning's news)

6. The ancient Romans suffered from lead poisoning. (I read in a magazine)