Choose the alternative that shows the sequence of words that correctly completes the sentence.
DESCRIPTION OF THE ROLES
1. Before the lesson, she is when she thinks about and prepares what she is going to teach.
2. She is when she presents new language to the learners.
3. She is when she organizes group work or pairwork activities.
4. She is when she goes around the class and helps learners when they are working on activities.