1. He put on a pretence of being happy, but I could see the sadness in his eyes.
他假装快乐，但我能看出他眼中的悲伤。

2. She used her illness as a pretence to avoid going to the party.
她以生病为借口避免参加派对。

3. The company's charity work was just a pretence to improve their public image.
公司的慈善工作只是为了改善他们的公众形象而做出的虚假陈述。