Physicians may soon have ............ to help paralysed people move their limbs by bypassing the ............... nerves that once controlled their muscles.
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"Ways" is often used to refer to methods or strategies, while "damaged" appropriately describes nerves that have been impaired or harmed.
The first gap requires a word that suggests methods or techniques, which "ways" fits. The second gap refers to the nerves that were harmed or altered, so "damaged" is the best fit here. Hence, Option (2) is correct.
\[
\boxed{2}
\]