摘要
1. It was July 7,1937 his grandfather saw fighting on the bridge.It was July 7,1937 the Anti-Japanese War broke out.It was on July 7, 1937 the Anti-Japanese War broke out.It was July 7, 1937 the world people realized Japan's ambitions.It was not until July 7, 1937 the Anti-Japanese War broke out.A. that B. when C. which D.
