求以下单词的过去式!以下单词的过去式：staystudyopenenjoystartrunreadvisitwearcu

stayed
studied
opened
enjoyed
started
ran
read
visited
worn
cut
flew
drew
listened
played
以y结尾的单词：若是前面紧连着元音字母则直接加ed；单音节词也是直接加ed
若前有元音但不连着是去y加ied.
大部分词都是直接加ed的,