Complete the following statements with proper words or expressions according to the course book.The sentence “I lost Betty's picture.” is ambiguous due to ( ).
【正确答案】：POLYSEMY
【题目解析】：“我失去了贝蒂的照片”这句话由于多义而模棱两可。picture即可指“照片”又可指“画”，题干的句子就变成了“我弄丢了贝蒂的画/照片”。
