4.Look at the picture marked No.4 in your textbook.
4.请看你课本中的第四幅图片。
A. The bus has pulled off the road.
A. 公共汽车停在路边。
B. The bus is about to leave.
B. 公共汽车正要开走。
C. The road is crowded with many cars.
C. 路上车很拥挤。
D. A pedestrian is crossing the street.
D. 一个行人正在过马路。