A. On my way home, I helped to catch a thief who had robbed an old man of his wallet.B. Only Lijun knows how to get in touch with her.C. As soon as I went into the room, somebody came to show me where to sit.D. The driver took the old lady to a nearby hospital immediately. 我在回家的路上帮忙抓了一个抢老人钱包的小偷。