1 . Certain courses are compulsory (必修的), while others are o ______. (根据首字母单词拼写)

2 . Chinese Calligraphy is one of the ________ (选择) courses offered to students. (根据汉语提示单词拼写)

3 . Unlike Chinese or Maths, Poetry is one of the many o______ courses that the school offers. (根据首字母单词拼写)

4 . This course is o________. You don’t have to take it. (根据首字母单词拼写)

5 . In that school, French and Russian are o________ courses, but English is required for all students. (根据首字母单词拼写)

6 . Certain courses are compulsory, while others are o_______.

7 . Chinese Calligraphy is one of the many ________ (选修)courses offered to students who are interested in traditional art. (根据汉语提示单词拼写）

8 . Chinese Calligraphy is one of the many ____ courses offered to students who are interested in traditional art.（根据课文内容填空）