2542776 Tom unscrewed the light bulb. CK 1 279159 The light bulb has burned out. CK 1 2542209 Tom screwed in the light bulb. CK 1 1950174 These light bulbs can't all be bad. CK 1 37449 Thomas Edison invented the light bulb. CK 1 680452 The light bulb burst. Source_VOA 573742 The bulb has burned out. CK 681358 A light bulb gives light. Source_VOA 529337 The light bulb burned out. darinmex 2259727 Three bulbs have burned out. _undertoad 65331 Edison invented the light bulb. CK 546809 Who can tell me how a light bulb works? darinmex 781588 She planted the flower bulb in the garden. Zifre 3341561 Ever since Tom changed his mother-in-law's light bulbs, he's been in her good books. patgfisher