I found the cat____ under the bed, who had caught a mouse.

Taiyuan，a city in North China，was struck by a heavy snowfall last week，________serious traffic problems.

He did nothing but ________walk in the street. 

The news shocked the public,________ to great concern about students’ safety at school．

 From his _______ look, we could see that he hadn’t expected that we could raise such _______ questions to him.