他假装在听我说话，但我知道他只是在做样子。

He kept up the ___pretense of listening to me, but I knew he wasn't paying attention.

她在派对上装出一副对葡萄酒很有研究的样子，其实她根本不懂。

She made a ___pretense of knowing a lot about wine at the party, but she actually knew nothing.

她以生病的借口请假，其实是想去看演唱会。

She took a day off under the ___pretense of being sick, but actually wanted to attend the concert.