Which of the following classroom and exam  activities require critical thinking skills? Why?
1. analysing  an  examination  writing topicc.
2. identifying the mainn argument  in a reading text.
3. writing down a dictation.
4. studying a grammar rule.
5. deciding how to record new vocabulary.
6. making a mindplan of ideas for a speaking or writing task.
7. repeating a phrase after the teacher or tape.
8. discussing a topic in pairs or groups.