Составьте предложения, используя слова: 1. have to / their products / charge / businesses / the market price / for. 2. is relevant / of / services / and / the law / to all goods / demand / 3. are bought / together / that / often / and / products / consumed/ /are / complements 4. in demand / result / of / the decrease / will / in / a market price / decrease .