6.Look at the picture marked No.6 in your textbook.
6.請看你課本中的第六幅圖片。
A. They are taking the elevator down.
A. 他們正在坐升降電梯下樓。
B. They are shopping for clothes.
B. 他們在買衣服。
C. They are riding on an escalator.
C. 他們正在乘坐扶梯。
D. They are across from each other.
D. 他們面對面。