11.   He lost enthusiasm and began going through the motions.

12.   He is among many peasants losing enthusiasm for a movement that appears to descend sometimes from the lofty mission of revolution to mere delinquency.

13.   His father said Naoya lost some enthusiasm for gymnastics in his adolescence, but Naoya himself has a different recollection.

14.   I eventually lost my enthusiasm for zoos.

15.   I saw no signs of quitting and we lost no enthusiasm.

16.   If Sir Peter has not lost his appetite for work since leaving the National, he has not lost his enthusiasm for controversy either.

17.   If you are losing enthusiasm for your current strength-training routine, there are a number of things you can do.

18.   It failed so miserably that one suspects the star lost some enthusiasm for the idea sometime after it was too late to bail out entirely.

19.   Murphy has grown up without losing his enthusiasm for comedy.

20.   Now that a vote is imminent, some Democrats are losing their enthusiasm.