Conventional treatment is mainly directed toward relief of ( ). A: symptoms B: systems C: stems D: screams

A pair of night birds circled above, the ______ of their wings and their weird screams penetrating the thickening mist. A: slapping B: clapping C: flapping D: flipping

Two men suddenly appeared and ______ the girl, but fortunately some passersby heard her screams and saved her. A: fell upon B: fell on C: fell off D: fell down