используя 1-ое или 2-ое причастие 
1.translate the words (to write) on the blackboard
2.the (to loose) book was found at last
3.(to go) along the street i met Mary and Ann
4.i think that the boy (to stand) there is his brother
5.the book (to write) by him is very interesting

1. written2. lost (а глагол - to lose, а не to loose)3. going4. standing5. written

1.translate the words written on the blackboard2.the lost book was found at last3.going along the street i met Mary and Ann4.i think that the boy standing there is his brother5.the book written by him is very interesting