
我的回答是:be+doing,所以有are后面用going
am/is/are是be动词,后面常用名词,形容词,代词,介词,动词的ing形式等。
如:
She is going shopping with me.
We are playing football together.
The book is on the table.
This is my sister and that is me.
She is a nurse.

我的回答是:be+doing,所以有are后面用going
am/is/are是be动词,后面常用名词,形容词,代词,介词,动词的ing形式等。
如:
She is going shopping with me.
We are playing football together.
The book is on the table.
This is my sister and that is me.
She is a nurse.