填空完成下列种树的步骤。

1. Dig a _____ for the tree. The hole should be _____ enough, but not too _____.

2. Knock a _____ into the earth to keep the tree _____.

3. Put the _____ in the _____. Make _____ that it is _____.

4. _____ the _____ back into the _____.

    _____ it _____ hard with your _____ several times.

5. Tie the _____ to the top of the stick to _____ it straight.

6. _____ the tree well.

把钩工挂钩完毕必须检查一遍（）。

A、车辆各部位

B、钢丝绳

C、保险绳

D、连接装置等