They look so sad. There must be ________ on TV.

I have just watched a good film about ________elderly fisherman in Guilin.

_______ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.

Mrs. Green took up the story at thepoint ____the thief had just made off with the jewels.

He went into space as _____polit of Gemini 8.