单选题 In spite of the wide range of reading material specially written or ____________for language learning purposes, there is yet no comprehensive systematic programme for the reading skills.
【正确答案】 A
【答案解析】adapted是“改编，使适合”，可与介词for搭配。B．acknowledged是“承认，得到认可”； C．assembled是“组装；集合”；D．appointed是“指定，约定”。