_____were you there?only four days.填什么呢?people show their love to their mothers ____giveing gifts on Mother'sDay A to B by C at Dfor选择什么呢?
问题描述：
_____were you there?only four days.填什么呢?
people show their love to their mothers ____giveing gifts on Mother'sDay A to B by C at Dfor选择什么呢?
答
B
by +动名词，表示通过......方法，达到......目的
people show their love to their mothers by giveing gifts on Mother'sDay
人们通过在母亲节送礼物给妈妈来表达他们对母亲的爱。
答
How many days were you there? 选择B，通过···的方式，by.
答
_How long____were you there?only four days
选B 通过某种方式(手段) 用介词by 后面接动词的ing 形式