问题描述： He goes to see his uncle (once a week）.对括号内提问 1个回答 分类：英语 2014-09-18 问题解答： 我来补答 once a week 一周一次,是表示频率的词所以对此提问的话,应用表示频率、频次的特殊疑问词 how oftenHow often does he go to see his uncle? 展开全文阅读
