proper造句

He denied that he'd failed to keep a proper lookout that night.
他否认当晚守望不力。

Catherine demonstrated the proper way to cleanse the face.
凯瑟琳演示了洁面的正确方法。

Britain imposed fines on airlines which bring in passengers without proper papers.
英国会对运载证件不齐全的乘客进入国内的航空公司课以罚款。