The work demands care and patience．

“What do you mean by that?” he demanded．

The United States demanded that Iran should unconditionally give up its nuclear weapon program．

The letter demanded an immediate answer．

She was risking her own life．

Smoking can increase the risk of developing heart disease．

He who risks nothing gains nothing．

John went to the seaside yesterday rather than he went where he often goes．

She likes to keep things rather than(to)throw them away．

I’d prefer to go in summer rather than in winter．

Taking exercise every day makes him look younger rather than older．