根据上下文补上所缺的单词的ing形式,使短文完整
(write do cook clean wash answer listen draw read work)
Everybody is very busy. Grandpa isa letter. Grandma isa book. Dad is in the study. Mom is dinner in the kitchen. Brother is to music. Sister is the room. I am pictures. Uncle is the phone. Aunt is clothes. Cousin is homework.