【正确答案】The most common student groupings are whole class work, pair work, group work and individual study. Whole class work refers to the time when all the students are under the control of the teacher. They are all doing the same activity at the dame rhythm and pace. Pair work refers to the time when students work in pairs on an exercise or a task. It could he a dialogue reading, a game or an information-gap task between the two students. Group work refers to the time when students work in small groups. Each group may have 3, 4 or 5 students, depending on the activity. Individual study is the stage when students are expected to work on their own at their own speed,