Поставьте предложения в отрицательную и вопросительную формы. 1. We demand payment

Поставьте предложения в отрицательную и вопросительную формы. 1. We demand payment of penalty in accordance with clause 16 of the contract.2. I shall send all the documents by e-mail.3. They protected their trademark against counterfeiters.4. I have just telephoned Moscow.5. We are setting up a new office in Argentina.6. The contract can be signed in two days.The law of demand describes the relationship between prices and the quality of goods.