期末考试是小菜一碟。

The final test was ___a ___piece ___of ___cake.

写那份报告结果非常轻松。

Writing that report turned out to be ___a ___piece ___of ___cake.

有了清晰的说明书，组装新家具易如反掌。

Assembling the new furniture was ___a ___piece ___of ___cake with the clear instructions.