神马作文网写出下列句子的原因原因
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/12 04:27:34
He has been daancing since he was seven.此处为何要用since？ Ma mother (do) the housework since 3 hours ago. They have been living for two ang a half years.此处为何要用years I am talking to you from the opening ceremony of our sports meeting. 此处为何要用to
解题思路： 现在完成进行时。
解题过程：
He has been daancing since he was seven.此处为何要用since？
自从他七岁开始，“从… 开始”用：since引导现在完成进行时。
Ma mother has been doing (do) the housework since 3 hours ago.
They have been living for two ang a half years.此处为何要用years
two and a half "2.5"大于1，所以他后面的名词用：复数。
I am talking to you from the opening ceremony of our sports meeting. 此处为何要用to
“和某人谈话”talk to sb
"谈论某事"talk about
最终答案：略
解题过程：
He has been daancing since he was seven.此处为何要用since？
自从他七岁开始，“从… 开始”用：since引导现在完成进行时。
Ma mother has been doing (do) the housework since 3 hours ago.
They have been living for two ang a half years.此处为何要用years
two and a half "2.5"大于1，所以他后面的名词用：复数。
I am talking to you from the opening ceremony of our sports meeting. 此处为何要用to
“和某人谈话”talk to sb
"谈论某事"talk about
最终答案：略