(2013·沈阳二中模拟)She devoted herself________to her research and it earned her a good reputation in her field.

He passed through a difficult period _____ after his marriage broke down. 

—I heard a bus accident happened yesterday.—The bus crashed. Luckily, only a few passengers aboard were _____ injured in the traffic accident.

There was _________ no wind and the air was very hot.

Qingdao is ＿＿＿＿＿＿＿ beautiful city in summer.