Why did they keep trying _________ they must have known it was hopeless?

Since when has ____ been any of yourbusiness what I do

This woman likes finding fault ________ others ________ the spot.[ ]

With all the children around, grandma’s heart _____ happiness on the Mid-Autumn Day reunion.

Little Tom tiptoed quietly to the bird, but ______ into the forest when he was about to catch it.