1) The boy buying a dis is my student. 2) The distance run by
him is very long. 3) The composition was written by the
students. 4) The students were writing a composition. 5) When asked she brought some books. 6) When reading this book he found much
interesting information. 7) He saw the flying bird in the
sky. 8) Having graduated from the university be began to work
in this joint venture. 9) We were drinking tea made by her. 10) My grandmother lives in the house built in 1990.