Deaf people are who that can’t bear but they are able to communicate 【S1】______ quite well with a special language. It’s ca

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问题     Deaf people are who that can’t bear but they are able to communicate      【S1】______
quite well with a special language. It’s call sign language. The speaker      【S2】______
of sign language use hand and gestures in order to communicate.                【S3】______
Basic sign language has been used for a long time. And it wasn’t really        【S4】______
developed until about 250 years ago. In the middle of 1700s, a                 【S5】______
Frenchman develop sign language. He developed a large number of                【S6】 ______
words for sign language. We call them picture-image signs so the               【S7】______
signs create vocabulary pictures.                                              【S8】______
    Abbs Sicard also developed sign language of other ways. He made            【S9】______
complete roles to show the order of word in sentences and to show              【S10】______
verb tenses.

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