leery

她对尝试新食物很谨慎。

She was ___leery about trying the new food.

她对网上那些承诺快速致富的方案总是持怀疑态度。

She's always ___leery of online schemes promising quick riches.

他对那些好得难以置信的投资项目总是心存疑虑。

He's always ___leery of investment deals that sound too good to be true.