Please help me!!!

[email protected] в категроии Английский язык, вопрос открыт 09.03.2017 в 01:06

Утворіть питальне і заперечне речення.
Наприклад: I have been there very often- Nave I been there very often? I have not been there very often.

1. The snudents have passed all their exams.
2. They have answered all the questions.
3.You have solved the problem .
4. Something has happened to your friend.