A special research team from the local medical center【C1】______experiments on completely blind babies. The babies to be tested on lived at home with their mothers of families. The research workers would visit the babies and closely【C2】______the development of their senses and behavior. every two weeks. In most【C3】______, the research workers tested the responses of the blind babies to different stimuli (刺激) common in the family environment. Generally speaking,a【C4】______baby would react with smiles and laughter to tickling(瘙痒) ,to the voice of a relative,and to hugging(拥抱)from his family. His reactions were swift.【C5】______, most of the blind babies, according to the experiments, responded to stimuli impassively. In fact,they were indifferent to【C6】______sound. But【C7】______some special situations, some of them were able to【C8】______ to the sound of their mothers with a smile. Usually, their response was very【C9】______ The tests were done about nine months;they【C10】______ when the blind babies were one month old and ended when they were ten months old.1．A．carried B did C finished D took2．A．watched B relaed C wrote D observed3．A．times B cases C examples D places4．A．new B normal C special D big5．A．While B moreover C However D therfore6．A．any B no C some D either7．A．under B from C upon D with8．A．turn B talk C listen D react9．A．lond B big C slow D strange10．A．began B rose C spoke D agreed