# 1เลือกประเภทIt's on teacher's desk. You use it to write on the whiteboard.whiteboardpenmarkereraser
# 3เลือกประเภทIf the teacher says "Open your book on page 79." What should you do?Close the book.Start writing.Open the book to page 79.Close the book to page 79.
# 4เลือกประเภทIf the teacher says "Listen carefully." What should you do?Be quiet and pay attention.Keep all the things after using.Start talking with your friends.Start to work in group.