请在中午12点前办理退房手续。

Please complete the ___check-out process by 12 PM.

医生在手术前对病人做了详细检查。

The doctor did a complete ___checkup of the patient before the surgery.

你需要在柜台完成结账手续才能带走这些杂志。

You need to finish the ___check-out procedure at the counter before taking these magazines.

超市的收银台旁边放着很多糖果。

There are many candies placed near the ___check-out in the supermarket.