看图，选词填空，补全短文。

A. writing an email B. cooking the dinner C. watering the plant D. in the study E. in the washroom

Today, Hao Tian's family members(家人) are all at home. Hao Tian isin his room. His grandpa is reading a book. His grandma is. His mother is . His father is in the kitchen. What a happy family!