Uzupełnij tekst, używając who, which lub where.

The historic city of Marwood, which was built on the River Mar in the 14th century, was once famous for its farms. These
farms, (1) ______ about 90% of the city’s population worked, provided food for the local people and to other villages.
The people of Marwood, (2) ______ were proud of their farms, worked very hard. In 1562 they built the market, (3)
______ you can still buy things today, from the wood growing around the city. The forest of Mar, (4) ______ was
very big and dense, also helped protect the city from invaders.