单选题 1分

What stage can the following grammar activity be used at? The teacher asked students to arrange the...

What stage can the following grammar activity be used at?
The teacher asked students to arrange the words of sentences into different columns marked subject, predicate, object, object complement, adverbial and so on.
  • A.Presentation.
  • B.Practice.
  • C.Production.
  • D.Preparation.