10. Under the task-based language teaching, Mr. Lin teaches his seventh graders the language they will need to complete the task, such as "How often do you ______?" and "I ______ every day?" Which phase is Mr. Lin at?
(A) a pre-task phase
(B) during the task
(C) a post-task phase
(D) self or peer- error correction

In essence, a language lesson based on the Task-Based Language Teaching method has three stages, the Pre-Task Activity, the Task and the Post-Task or Review.

During the Pre-Task Activity, you introduce the task to the students, trying to motivate them and make them look forward to it. At this point, you also set your expectations and you show them a finished example of the same task as guidance as well as a method to avoid using the native tongue to answer the many questions students might have. You proceed to hand out stationery and other necessary materials, and form groups or pairs.

The Task stage is where you let your students shine. Focus on making them work in small groups so even the least motivated student can grasp the chance to work. Do not intervene, let them communicate on their own and only walk around the classroom monitoring the process. Assist them only if they do not know how to proceed.

When the task is over, it is time for the Review. Groups have the chance to present their work (video, poster, story) to you and to their peers and receive constructive feedback.

出自: https://sanako.com/introduction-to-task-based-language-teaching-and-learning-method