The wоrds in the bоx аre wоrds thаt you studied in Unit 3. Choose the best word to complete eаch sentence. Put the words in the correct form. You will not use all the words. catch up ideal mastery overtake proponent species decipher impression onset paramount sophisticated superior Although adult learners of a new language have an advantage over children and initially learn more quickly, younger learners eventually [1] them. Signed and spoken languages are equal in every way; neither is [2] to the other. Hearing people sometimes have the [3] that deaf people are spelling out words with their hands, but this is not the case. Like spoken languages, signed languages are capable of expressing [4] ideas. Abbé Charles Michel de L’Ėpée, who was an early [5] of the use of sign language, established the first public school for the deaf in 1771. If deaf children do not have access to input when they are young, it may be difficult for them to [6] with deaf children who have had such access. Although many animals use some form of communication, many scholars believe that humans are the only [7] that uses language. During the [8] of language learning, deaf babies babble with their fingers. The [9] language learning conditions for a deaf child are in a home where sign language is used all the time. For someone who learns sign language as a child, [10] comes relatively quickly, but for those who begin learning as adults, the process will take much longer and is not always successful.