There is a peaceful and calm _____________ in the hall, and everyone seems to be in high spirits.

I am writing to express my _______ for the safety of children travelling on school buses, especially those on high-risk and highway-speed routes.

--- Who did you spend last weekend with? ---  ______.

 If you stand here, you’ll get a better______of the river.

I can hardly say which dish is best –it’s simply a（n） _____ of personal taste．