(Student union membership fees) can be compulsory.Logical formLearned from6 sentences. A first year can be compulsory.Logical formLearned from6 sentences. An action can be compulsory.Logical formLearned from6 sentences. (School subjects) can be compulsory.Logical formLearned from6 sentences. Service may be made compulsory.Logical formLearned from6 sentences. Compulsory schooling can be in a country.Logical formLearned from6 sentences. Elementary education may be made compulsory.Logical formLearned from6 sentences. A veil can be compulsory.Logical formLearned from6 sentences. A compulsory military service can be in a country.Logical formLearned from6 sentences. Activities can be compulsory.Logical formLearned from6 sentences. A compulsory education can be quality.Logical formLearned from6 sentences. Primary school can be compulsory.Logical formLearned from6 sentences. Texts can be compulsory.Logical formLearned from6 sentences. A flag can be compulsory.Logical formLearned from6 sentences. A study of a language can be compulsory.Logical formLearned from6 sentences.