The FBI last night released pictures of two men __________ planting the bombs which brought great damage to the Boston Marathon.
—— Do you know Jim quarreled with his brother? I don't know, and ______ .
Not once _____ their plan.
His uncle is a worker and has been working in the factory for more than ten years. _____.
Not only _____ a promise, but also he kept it.
_____ and caught the mouse.