If the teacher uses the same techniques, some students may not have the chance to learn in the way that suits them best.（）

判断题Lesson plans are useful only before the lesson.（）

判断题At each stage of the lesson, activities focus on all four skills.（）

判断题The stages of a lesson overlap.（）

判断题Usually a lesson should focus on practicing one single skill so that the students can develop that skill successfully.（）

判断题A normal lesson should have the all the stages discussed in this unit and the stages should be in fixed order.（）