Directions: Read the following text and fill in each numbered blank with ONE word that is both correct in form and appropriate to the context. Write your answers on the Answer Sheet. 

Cloud computing is an emerging general-purpose technology that could provide a fundamental contribution to efficiency in the private and public sectors, as well as promote growth, competition, and business creation. It is an Internet-based【A1】_____ through which information is stored in servers and provided【A2】_____ an on-demand service to clients. The impact of cloud computing【A3】_____ both households and companies will be substantial. On one side, consumers will be able to【A4】_____ all of their documents and data from any device (the personal computer or the mobile phone, among others) . On the other【A5】_____, firms will be able to rent computing power (both hardware and software in their latest versions) and storage from a service【A6】_____ and pay on demand. The former application will affect our lifestyles, but the【A7】” _____ will have a profound impact on the cost structure of all the industries using hardware and software, and therefore it will have an indirect【A8】_____ crucial impact on business creation and on the macroeconomic performance of countries. 

Cloud computing can exert a number of【A9】_____ on the economy. For instance,【A10】_____ can enable huge cost savings and more efficiency in large areas of the public sector,【A11】_____ hospitals and healthcare, education and the activities of government agencies【A12】_____ experience periodic peaks in usage. 【A13】_____, substantial positive externalities are expected because of energy savings: the improvement of energy efficiency may【A14】_____ to the reduction of total carbon emissions in a substantial way--- information and communication technologies (ICT) are【A15】_____ for 2 percent of carbon emissions in Europe, of which 1. 75 percent is due to the【A16】_____ of ICT products and services, and 0. 25 percent to their production. The introduction【A17】 _____ cloud computing can provide cost savings in the private sector as well: it can create multilateral network effects among businesses and【A18】_____ productivity within businesses, and it can promote entry and innovation in all the sectors【A19】_____ ICT costs are relevant and are drastically reduced by the adoption of cloud computing. This last effect can be quite large in【A20】_____ of consequences for the aggregate economy, and is the focus of the evaluation of the impact of cloud computing on the economy.