Our concern had shifted from hygiene to something far more urgent.

The market's concern over whether it can absorb new supply now shifts to today's auction of five-year notes.

Then, the concern had shifted to something that was almost hate.

Last night the concern shifted back to the rotation, where it has been focused for most of the second half.

Besides, political concerns had shifted by the time of Apollo 11.

Energy sources and environmental concerns had shifted drastically in the last hundred years.

Since that time, he said, students' concerns have shifted from international to local politics.

By the time camp broke on Wednesday, that concern had shifted to the condition of his mind.

And in that instant her concern shifted from herself to Jack.

Starting in the 20th century, these concerns shifted from geographic representation to issues of gender and ethnicity.