Ответ:
A. 1. It was a small house built in 1830. 2. Reading English books, write out interesting
expressions. 3. Walking along the street yesterday, I met an old friend whom I
hadn’t seen for many years. 4. Working on the translation of this article, I
learned a lot of interesting things about the history of old English towns. 5.
Not knowing Petrov’s address, we couldn’t visit him. 6. Being very sick he
could not keep working on the book. 7. I recognized the girl sitting at the
piano at once but couldn’t remember her name till my friend told me. 8. I was
walking along unfamiliar streets looking at the buildings with interest.
B. 1. The engineer who was waiting for you yesterday
has just rung up. Will you be able to talk to him today? 2. The man who wrote
this book had probably travelled a lot. 3. The people sitting at the table were
talking loudly and laughing. 4. All the students who have borrowed books from
the library must return them after the exams. 5. The doctor who gave the
lecture yesterday had come from the Far East.