Question

4. Although nobody        her shoplifting,she was asked to leave the supermarket.

   A. spotted   B. observed

   C. stared   D. glared

Answer 1

4. A spot sb. shoplifting意为"发现某人在购物时偷东西"。 observe意为"观察"，与题意不符;stare意为"注视"，glare意为"怒视"，两项都是不及物动词，且意思也不合适。