How to use "arduous" in a sentence

We face the arduous days that lie before us in the warm courage of national unity; with the clear consciousness of seeking old and precious moral values; with the clean satisfaction that comes from the stern performance of duty by old and young alike

When Danny was six months old, Tina went into training to get back in shape, and after three arduous months of exercise, she won a place in the chorus line of a new Vegas spectacle

With seven massive production numbers, five major variety acts, forty-two girl dancers, forty-two boy dancers, fifteen showgirls, two boy singers, two girl singers (one temperamental), forty-seven crewmen and technicians, a twenty-piece orchestra, one elephant, one lion, two black panthers, six golden retrievers, and twelve white doves, the logistics were mind-numbingly complicated, but a year of arduous labor was evident in the slick and faultless unfolding of the program.

After long and arduous lobbying of the director, Alexander had at last been awarded this small jet; and immediately he put two full-time pilots, ex-military men, on the payroll of the Nevada bureau.