ПОМОГИТЕ ПОЖАААЛУЙСТА СДЕЛАТЬ УПРАЖНЕНИЯ ПО АНГЛИЙСКОМУ! Очень срочно...(!

1. It is late evening now. Mike and Nick are playing chess. The boys have been playing chess for 3 hours. I think that they are rather tired.
Сейчас поздний вечер. Майк и Ник играют в шахматы. Они играют в шахматы уже 3 часа. Я думаю они устали.
2. She hasn't invited me to her birthday party yet.
Она все еще не пригласила меня на вечеринку.
3. When i came home from University yesterday, my parents hadn't come back yet.
Когда я вернулся домой из университета вчера, родителей еще не было дома.
4. They hadn't been having their English lessons for a fortnight because their teacher had {третья форма глагола catch (я забыл) } a cold and she was ill.
У них не было уроков английского две недели, так как их учитель заболел.
5. Last month all students of our group took part in the conference on problems of computer illiteracy.
В предыдущем месяце все студенты нашей группы приняли участие в конференции по проблеме компьютерной неграмотности

как мне кажется. .
It is late evening now. Mike and Nick are playing chess. The boys plaied chess for 3
hours. I think that they (тут не знаю) rather tired.
2. She didn't invite me to her birthday party yet.
3. When I came home from University yesterday, my parents didn't comming back yet.
4. They haven't got their English lessons for a fortnight because their teacher cought a cold
and she is ill.
5. Last month all students of our group took part in the conference on problems of computer
illiteracy (неграмотность) . The conference (тут не знаю) of great use.