Réponse :

1. I went to London. (IR)

I did not go to London.

2. I took the Eurostar. (IR)

I did not take the Eurostar.

3. I arrived at Waterloo Station. (R)

I did not arrive at Waterloo Station.

4. I met old friends there. (IR)

I did not meet old friends there.

5. I was all very happy to see me. (IR)

I was not all very happy to see me.

6. I visited the town with them. (R)

I did not visit the town with them.

7. I saw king Charles III! (IR)

I did not see king Charles III!

8. I went to Buckingham Palace too. (IR)

I did not go to Buckingham Palace too.

9. It was a wonderful journey. (IR)

It was not a wonderful journey.

Explications : c'est mis aux deux formes demander donc positive et puis negative