"What's your _______?" "My back hurts."

"What's your _______?" "My back hurts." 求教My back hurts what's the matter?my leg hurts what's the matter?my leg_______ A.hurts B.sore C.is hurts 我英 What’s the matter? My leg——（hurts、sore、is hurts）选填 同义句改写my back hurts=I---- ---- ---- ----my back What’s your sister like?—_______. 19.---What’s your telephone number?--- _______ . what's your my name? looks like your smile,your back hurts good怎么翻译? My back hurts,hurt为什么要加S,动词第三个称单数才加S的吗~ My leg hurts.的hurts为什么要加S