多项选择题
What kind of common techniques are often used in error analysis？（）
A.error identificationB.error classificationC.error descriptionD.error explanation
单项选择题 How many crucial areas are included in the profession？（）
多项选择题 The ultimate purpose of teaching is to assist students to become （） learners.
多项选择题 In the classroom there are some rules to follow for making instructions effective.Which rules do you think are proper（）.
