架子太高了；我够不着它。

The shelf is too high; I ___can't ___reach it.

有了脚凳，连孩子也能够到顶层架子。

With a step stool, even a child ___can ___reach the top shelf.

书在远边，我几乎够不着。

The book was on the far edge, and I ___could hardly ___reach it.