нужна помощь с артиклями :)

1. a, the2. a, a3. a, the, _, a4. a, a, the5. the, a, a, _Rossimport was interested in the office equipment of Green&Co and send an enquiry. When they received a price-list and a contract from the company they studied them closely. The terms of delivery and payment by a Letter of Credits suited buyers, but the price was too high. During the talks Sellers offered Russian trade company a  5% discount on a price. The Buyers  agreed to the discount and companies signed the contract