sentences:  Lim also taught basic ASL classes for teachers and eventually ASL was taught to students in SSD.By 1978, SEE-II was adopted as the mode of communication and instruction by SADeaf in its affiliated schools, in SSD and Vocational School for the Handicapped (now known as Mountbatten Vocational School).However, the sign section of SSD, which used SSL, was phased out in 1983 because there were gradually fewer parents who opted for a Chinese education for their deaf children.