-
最佳答案:sing sang sungstudy studied studied
-
最佳答案:cleaned
-
最佳答案:study-studied-studied
-
最佳答案:open live sit study call现在分词openning living sitting studying calling三单形式opens li
-
最佳答案:fie的过去式fied 现在分词fieing 第三人称单数:fiesstudy过去式:studied studing studies