must 的用法
问题描述：
must 的用法
是must sb do 还是must sb to do
答
Must用法全接触一、表“必须”.You must talk to them about their study.你必须同他们谈谈关于他们学习的事.二.在否定结构中表不许.You mustn't leave here.你不能离开这儿.三.表坚定的建议.You must come and see ...