我的工作真的开始堆积起来了。

My work's really starting to ___pile ___up.

我的工作已经堆积起来，我不得不继续下去。

My work has ___piled ___up, and I have to carry on.

账单越积越多，我不知道该怎么支付。

The bills are ___piling ___up, and I don't know how to pay them.