和模拟测试比起来，期末考试简直就是小菜一碟。

The final exam ___was ___a ___piece ___of ___cake compared to the mock tests.

别担心修水槽的事；只要有合适的工具，这会很容易。

Don't worry about fixing the sink; with the right tools, it'll ___be ___a ___piece ___of ___cake.

有了多年的经验，现在用英语做演示对她来说易如反掌。

After years of experience, giving a presentation in English ___is ___a ___piece ___of ___cake for her now.