61.   The park service has not estimated how long the project will take or how much it will cost.

62.   The project could take from two to seven years, depending on how much money it gets.

63.   The project has taken more than a decade.

64.   The project takes three days.

65.   The project took five days.

66.   The project took nearly two years to complete before reaching stores.

67.   The project took them more than two years, from writing grant proposals to finding willing participants.

68.   The project will take an as yet undetermined number of years.

69.   The project takes about a day and a half, largely because of drying time.

70.   The project took little money, but it did require several coats of paint and lots of elbow grease.