Відкрийте дужки, використовуючи правильну форму інфінітивів.
Dyslexia is (to think) to (to be) one of the most common learning difficulties. It's (to estimate) that up to 1 in every 10 people in the UK (to have) a certain degree of dyslexia .
Dyslexia (to affect) people of all ethnic backgrounds, and (to have) even been shown to affect languages based on symbols rather than letters, such as Cantonese. However, a person's native language can ( to play) an important role in the condition. For example, dyslexia (to be) less problematic in languages with consistent rules around pronunciation, such as Italian and Spanish.
Languages such as English, where there (to be) often no clear connection between the written form and sound (for example, words such as "cough" and "dough"), can _ (to be) more challenging for a person with dyslexia.