您现在的位置是:首页 > 学科知识查询 > 高中英语题库

It is to help the teacher to clean the blackboard.A.good mannerB.good mannersC.bad mannerD.nice mann

编辑:chaxungu时间:2026-04-24 12:54:47分类:高中英语题库

It is ________to help the teacher to clean the blackboard.
A.good mannerB.good mannersC.bad mannerD.nice manners在线课程B
解析:
good manners意为“讲礼貌”,manner需用复数形式。