... they must have difficulty hearing and speaking. However, many can use hearing aids to help them with hearing.A: how can they overcome their problem of speaking? B: They can use sign language ... use sign language and gestures to communicate instead of spoken language. Unit 4: Special educationPeriod 28: Speaking 1. Vocabulary:Visually impaired (adj): khiếm thịHearing aids (n): ... that are felt with fingers to help the blind read 1, hearing aids 2, difficulty hearing and speaking 3, hear and speak 4, sign language and gestures that are used to communicate instead...