bicker|bickering|bickers

孩子们总是在车里为小事斗嘴。

The kids always ___bicker over small things in the car.

那对老夫妻经常为一些小事争吵不休。

The old couple kept ___bickering over trivial matters all the time.

这对夫妻总是为家务小事争吵。

The couple always ___bickers over trivial household chores.