Match the parts of sentences in column 'A', 'B' and 'C' to write four complete sentences.

Column A	Column B	Column C
(a) May Day	(i) work in mills and factories	(i) to commemorate the workers sacrifice in 1886
(b) The day	(ii)ts also called	(ii) struggle and sacrifice
(c) The workers had to	(iii) is observed	(iii) for quite a long time
(d) We enjoy the facilities today	(iv) because of their	(iv) International Workers' Day