1. I am sure I will be asked at the lesson tomorrow. 2. They told me that the new student is highly spoken of. 3. The hostess said that one more guest was expected. 4. The newspaper said that an interesting exhibition would be opened at the Hermitage the next week. 5. This new dictionary is being sold everywhere now. 6. All the texts were looked through yesterday, and not a single mistake was found. 7. Two reports on Hemingway’s stories were made in our group last month. Both of them were very informative. 8. He said that Grandmother’s letter had been received the day before. 9. Two new engineers have just been introduced to the head of the department. 10. Don’t worry, everything will be all right: the children will be taken to the theatre by the teacher and they will be brought back to school in the evening.

Похоже, нужно превратить предложения из пассивного залога в активный (где это уместно) и сделать их естественными. Вот возможные варианты:

1. I am sure the teacher will ask me at the lesson tomorrow.

2. They told me that people/everyone speak(s) highly of the new student.

3. The hostess said that they were expecting one more guest.

4. The newspaper said that the Hermitage would open an interesting exhibition the next week.

5. They are selling this new dictionary everywhere now. (Также: Shops are selling…)

6. We looked through all the texts yesterday and didn’t find a single mistake.

7. Two students in our group made reports on Hemingway’s stories last month; both were very informative.

8. He said that he had received Grandmother’s letter the day before.

9. They have just introduced two new engineers to the head of the department.

10. Don’t worry, everything will be all right: the teacher will take the children to the theatre and will bring them back to school in the evening.

Коротко о логике: в пассиве исполнитель действия скрыт, поэтому я добавляю наиболее естественного агента (teacher, people, they, we, shops/Hermitage и т. п.), чтобы фразы звучали нормально в активном залоге. В (8) логично сделать получателем его самого. В (7) конкретизировал «кто» в группе, чтобы уйти от безличного пассива.