【单选题】In spite of the wide range of reading material specially designed or ______ for language learning purposes, there is yet no effective and systematic program for the reading skills.
【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 program for the reading skills.
【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.