Is he collecting stamps?( be 动词后面应该doing形式,题目有误)
What are they doing?
What are girl doing now?
This small cat is not sleeping.
Where are you swimming?
划线在哪?
还有一题is&...
Is he collecting stamps?( be 动词后面应该doing形式,题目有误)
What are they doing?
What are girl doing now?
This small cat is not sleeping.
Where are you swimming?
划线在哪?
还有一题is&...