исправьте ошибки в тексте А)and may now see after (right )

Исправьте оплошности в тексте А)and may now see after (right ) gene therapy to correct his colour-blindness . B)if genetic therapy could ever be used to help colour - blind people see colours. C) the animal cannot function properly . D)that enables an animal to see the red colour E)which means they have trouble seeing those colors F)to make that organism function G) but the monkeys seemed to be able to see and understand the new colours right away. H)who led the research