Li Ming often does some------(read)in the morning

问题描述:

Li Ming often does some------(read)in the morning
标准答案是reading,可是我们老师说过often后面的词语不能加ing的帮忙解释一下啊

do some reading是固定搭配哈,要记住
还有什么do some cleaning
do some washing
都是一样的