Change the verbs into participles1. The tickets ____ (buy) yesterday were

Change the verbs into participles
1. The tickets ____ (buy) yesterday were not very expensive.
2. The boy _____ (stand) at the bus stop is my classmate.
3. The magazine _____ (publish) twice a month is very popular with teens.
4. The booking-office ____ (situate) in Green Street is the nearest to my house.
5. Teens ______ (write) postcards to their friends are very rare nowadays.
6. The postcard ______ (receive) some days ago looked very colourful.
7. The e-mal _____ (write) to me was short.
8. The pictures ____ (paint) by Serov were shown in London not long ago.