The early days of summer are busy ones for Eastern bluebirds.

The next two weeks were busy ones for Tom.

But circumstances forced him to stay on for a while more, and his last days in command are proving to be busy ones.

The days that followed were indeed busy ones for Tom.

I he next few days were busy ones indeed.

The next few days were busy ones for Tom Swift.

Precognition had told him that the upcoming hours would be busy ones.

The next two days were busy ones for us.

"We went ahead after we learned that this weekend is one of the busiest ones at the Met."

Like all Harlequin books, these are marketed to women, in this case really busy ones.