Przykładowa odpowiedź:

What speaker 1 found the most difficult was speaking, because you have to work out what to say and how to say it at the same time.

What speaker 2 found the most difficult was listening, because she couldn't tell where one word ended and the next one started.

For speaker 3, the most difficult thing is learning vocabulary, because there's too much of it and it's too difficult to remember all the words.

For speaker 4, the most difficult thing is intonation, because in English it varies much more than in Spanish and the stress patterns are different.

What speaker 5 found the most difficult was grammar and sentence structure, because word order in English is completely different than in Japanese and certain tenses are used in a different way.