pad

我在椅子上放了一个软垫，这样坐起来更舒服。

I put a ___pad on the chair for extra comfort.

我在便利贴上记下了购物清单。

I wrote down the shopping list on a ___pad of sticky notes.

她撕下便签本上的一页纸写了个电话号码。

She tore a page from her ___pad to write down a phone number.