People working 10 or 11 hours a day are more likely to suffer from health problems than _____who go off duty after eight hours.

 Many people in the west make ________ a rule to buy Christmas presents for their relatives and friends. 

The doctor advised Vera strongly that she should take a holiday, but _______ didn’t help.

We feel _______ our duty to make our school a better place.

(2013·成都市高三二模)—Which of these resorts do you like best?—________.They are both hot and crowded.