Тут употребляется Present Simple, потому что Is he having a tough time? - это вопрос, который не является главной мыслью, главная часть - Tim looks tired. Так же he thinks of taking может смущать, но на самом деле это обычное правило с глаголом состояния. Поэтому время - Present Simple.
She likes school because she likes to know something new.
She has three favorite subjects: history, science and informatics.
He doesn’t like school because he has problems with maths.
He doesn’t like school because it’s boring and waste of time.
He likes school because his class is a big friendly family.
He likes school because there he can talk with friends.
He likes school because there are a lot of sections.
He likes school because he plays in musical band.
На пример слово (fakes) означает подробки
responce luckness lucky immediately