15. Ronald liked to study. 1) True 2) False 3) Not stated

Решение:

В тексте сказано: "Ronald, as he was known in the family, was a keen pupil and as a result he could read by the age of four and could write fluently soon afterwards." Слово "keen pupil" означает "усердный ученик", что подразумевает любовь к учебе.

Ответ: 1) True