有些简单的英语,提问
问题描述：
有些简单的英语,提问
during the holiday 对还是 during holidays
that report is still incomplete.为什么要加is?
the scientific symbol for water.为什么用for作为介词
It doesn't matter.that's right.和that's all right.在什么场合中用?
答
during the holiday 对还是 during holidays 前者特指一个节假日,（如刚刚过去的10.1）,后者泛指节假日!that report is still incomplete.为什么要加is?该句is是助动词,是构成一个完成句子的必要成分!the scientific...