Ответ:

2. The singer that I like the most is Rihanna.

3. My favourite CD is about Harry Potter.

4. The flat that I liked the most was in London.

5. 2020 was the year that I liked the most.

6. The football team that I like the most is Real Madrid (выбирай любой клуб)

Объяснение:

(Только третье отличаеться из-за построения предложение)