2 sentences

1. 他总是幻想天上掉馅饼。

   tā zǒng​shì huàn​xiǎng tiān​shàng diào xiàn​bǐng.

   He is always dreaming of a windfall from the sky.

   Source: Dong Chinese Dictionary

2. 只有傻瓜才会相信那种天上掉馅饼的虚假中奖短信。

   zhǐ​yǒu shǎ​guā cái huì xiāng​xìn nà zhǒng tiān​shàng diào​xiàn​bǐng de xū​jiǎ zhòng​jiǎng duǎn​xìn.

   Only a fool would believe those fake 'you've won' text messages that sound too good to be true.

   Source: Dong Chinese Dictionary