图中甲图的a是闭合电路的导体在磁场中的横截面，⊙表示导体按箭头运动时产生的感应电流方向．根据甲图的情况标出乙、丙中○内的感应电流方向。
— Look! The old man ______ a big box into the house.
— Let's go and help him.
When I got to the bus stop. I missed the early bus and I had to____ the next one.
