我来买单，别担心。

I’ll ___get the ___bill, don’t worry.

请把账单放在桌子上，我们等会儿一起付。

Please leave the ___bill on the table, we'll pay it together later.

议会正在讨论一项关于环境保护的新法案。

The parliament is debating a new ___bill on environmental protection.

这只鸟用尖嘴啄开了坚果。

The bird cracked the nut with its sharp ___bill.

你能帮我换成更小面额的钞票吗？

Can you break this twenty-dollar ___bill into smaller ones for me?