It may have been unusually cold recently but experts say it's ________ for this time of year.

She made a conscious attempt to look ______ though she felt tired out.

According to a White Paper on the health of Chinese white collar workers, 60 percent are over- _______ and 76 percent in poor ________ , with fewer than 3 percent really _________ .

 --Jim has his wife do all the housework! Isn’t he wise? -- Not really. He is _______.

Sometimes, the entrance tickets are _____ free of charge from the university．