If the internet suddenly _____ worldwide, many businesses would stop operating. (to disappear), disappeared, If I _____ responsible for the project, I would test the software more carefully. (to be), were, If this robot _____ able to learn independently, it would become much more useful. (to be), were, If the laboratory _____ larger, we would install more equipment. (to be), were, They would travel the world if they _____ more money. (to have), had, If researchers _____ climate data, their predictions would be less accurate. (to analyse), didn't analyse, didn't analyze, If we _____ a way to store solar energy perfectly, renewable power would be much more reliable. (to find), found, If I _____ you, I would apologize immediately. (to be), were, If researchers _____ the cause of aging, people would probably live much longer. (to know), knew, If a computer _____ human emotions, communication with machines would be easier. (to understand), understood, If the battery _____ so quickly, electric cars would be more practical. (to discharge), didn't discharge, If scientists _____ unlimited funding, they would explore more ambitious projects. (to have), had, If he _____ more confident, he would speak in public more often. (to be), were, If the city _____ better public transport, fewer people would drive. (to have), had, If plants _____ faster in winter, farmers would harvest more crops. (to grow), grew, If the phone _____ waterproof, I would take it to the beach. (to be), were, If we _____ more time, we woul'd finish the experiment today. (to have), had, If he _________ so many work duties, he would be able to focus on his research. (to have), didn't have

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