Переведите следующие предложения на русский язык, обращая внимание на способы выражения долженствования:

1. As the price of one good rises, the consumer has to buy another good, whose price has not risen. 2. Government regulations should be in the interests of society. 3. The buyers have to reconcile what they want to do and what the market will allow them to do. 4. We ought to answer the question what should be done now to prepare managers on whom we'll be able to rely in the year 2010. 5. A foreign company in Great Britain must give certain information about itself to the government offices. It must also write its name and country of registration on all its documents. 6. The limited supply of energy in some sectors of the US economy is to lead to changes in the economic situation as a whole. 7. Making a decision, the economist should rely on all the information that he can find. 8. You ought to have the firm re-registered as soon as possible or you may have trouble.