Although he has become wealthy, Mr. Wood remains _________ he used to be ,modest and friendly .

_______is often the case with elder people, my grandma talked about my new hairstyle for at least 30 minutes.

—How will you deal with these papers, Ann?—I will leave them to ________ takes over the job.

There are fewer teaching positions left in big cities, ______ at the same time there are shortages of teachers in small towns．   

Engines are to machines ________ hearts are to animals.