我们难以置信地直盯着燃烧的大楼上升起的黑烟。
We stared in ________ at the black smoke rising above the ________ building.
在新的旅行启程之际，别忘了你来自何处。
As you set ________ on your new ________, you shouldn’t forget where you came from.
房子的顶部是一条翻转过来的旧木船。
The top of the house is ________ old boat turned ________ down.
如果鲨鱼的数量降至过低，就会给海洋生物带来危险。
If numbers of sharks drop ________ low, it will bring ________ to all ocean life.
我们齐心协力就能带来变化，创造更加美好的未来。
So together, our ________ can make a difference and lead to a better ________.
Let’s go hiking, ________ ________ (完成反意疑问句)
