Group 1, Because of their cost, haptic gloves are unlikely to be widely used in the foreseeable future., They could eventually be used for more everyday applications., Who knows if before long we might be shaking hands with business colleagues on the other side of the world!, Group 2, People might well decide to swap their own hands, arms or legs for bionic limbs., Most of these devices are still very expensive, but costs may start coming down as the technology advances., Group 3, The idea of replacing someone’s heart must have seemed like science fiction., These new bionic organs are almost bound to perform better than their biological counterparts.

Unit 7A_Grammar

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