form

这些水晶是天然形成的。

These crystals are naturally ___formed.

孩子们正在用积木搭建一座塔。

The children are ___forming a tower with building blocks.

请填写这张表格。

Please fill in this ___form.

我需要一些表格来申请护照。

I need some ___forms to apply for a passport.

云朵在天空中形成了有趣的形状。

The clouds ___form interesting shapes in the sky.