问题描述: how long (will they be)staying?为什么不是(they will be) 1个回答 分类:英语 2014-12-04 问题解答: 我来补答 这是个简单句的问句, will提前如果整个句子做宾语, 那就用whey will be例如I don't know how long they will be staying 展开全文阅读