With 3-D printers, researchers can avoid _____ costly mistakes., to make, making, Some people hear about amazing objects made by 3-D printers and start _____ they can make the same things themselves., believing, believe, 3-D printers allow designers _____ new concepts., to test, testing, Experts think _____ human tissue with 3-D printers is a distant possibility., to produce, producing, With 3-D printers, researchers can avoid _____ costly mistakes., to make, making, If a student needs _____ a model for a science project, a 3-D printer can be useful., to make, making, For several decades, robotics companies in Japan have been working toward their ambitious goal—they intend _____ a perfect humanoid robot., creating, to create, They hope, one day, _____ able to make androids look exactly like humans., being, to be, Some scientists are also trying _____ their androids a personality., to give, giving, However, there are people who simply refuse _____ a future where robots and humans live and work side by side., accepting, to accept, Other people don’t mind _____ about a future where robots play an important role., to think, thinking, Personally, I think I would enjoy _____ with a robot that can think, act, and relate to humans., to interact, interacting, If asked, I’d certainly agree _____ an android do chores around my house., to have, having, The question is, will we ever regret _____ robots so much like humans?, to make, making.

Perspectives 3. Unit 2C. Verbs followed by gerunds or infinitives

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