他心不在焉地用手指拨弄着桌上的硬币。

He was absentmindedly ___fingering the coins on the table.

钢琴老师纠正了我的指法错误。

The piano teacher corrected my ___fingering mistakes.

这种手指纱非常适合编织婴儿毛衣。

This ___fingering yarn is perfect for knitting baby sweaters.