Упр. 1
1. London is visited by thousands of tourists every month
2. The room was cleaned by the girl yesterday
3. This original exhibition was organized by a group of artists
4. A new book will be published by the writer next year
5. Texts are translated by us at our English lessons
Упр. 2
1. Allowed
2. Would
3. Were, would try
Упр. 3
1. d
2. b
3. b
4. b
5. a
Упр. 4
1. b
2. a
3. d
4. a