【正文】
ass. (In, On)the classroom, there is (board, a board)in the front of our classroom .(In, On)my desk, there (is, are)a green Pencilcase and there (is, are)many pens in the pencilcase. Where is my schoolbag? Oh, it ( is, are)on my chair. 四,根據(jù)圖片 P17 回答下列問