Try to understand the italicized words in the following sentencesfrom the context. Write the word(s) in the space given after eachsentence.2. Suddenly there was a power failure. After half an hour, peoplebegan to drift outdoors. Before long, everyone was sharing soda, lemonade and iced tea. Food began to appear and someone fetched picnic tables, and an impromptu block party developed.( impromptu )_______
【正确答案】：not planned
【题目解析】：P126
