题目

句子： ______ ________(面临) a difficult situation, Tom decided to ask his boss  for advice. He became famous _______ _________ _________.(40多岁) People in Chongqing are proud of _______ _______ ________ ________ (所取得的成就)in the past ten years. we can give money to _______ ______ _______ ________ ______ (使饮水安全). Always leave things ________ _______ ________ _______ ________ _________.(你能再找到它们的地方)计算结果正确的是（    ）     A. 3                B. 1                C. -1               D. -3