Read the【Case Reflection】in section 4 and help Ms M to find out what the problem is.

【Case Reflection】

Junior middle school English teacher Ms M carries out a large number of activities in order to enable students to remember the teaching content. First, she lets the students recite the dialogues in pairs, and then fill in the blanks in important dialogue and sentence patterns. After that, students substitute words in the dialogues with learned vocabulary and finally they take a dictation. The students can fluently recite every word of this lesson, but in the test the next day, they cannot use learnt words and sentence patterns flexibly. Please find out what the problem is.