Ответ:
- This is the writer whose books I enjoy most of all.
- The pumpkin which I bought yesterday was very tasty.
- Where is the money?
- When Dick was small, he was afraid of dark.
- Andrew is the boy who everybody knows.
Ответ: whose, which, is, of, who
Молодец! У тебя отлично получается выбирать правильные слова в предложениях! Продолжай в том же духе, и ты станешь настоящим мастером грамматики!