选词填空。
(一)
Today is _________.It’s sunny. Grandpa is _________ a letter. Grandma is cooking _______in the ________.Dad is answering the _______.Mom is cleaning the _______. I am reading a _______ in the study. My little sister is _______to music. Everyone is busy.
(二)
(1)―What____ ____ doing?
-I’m taking pictures.
(2)-____ _____ watching insects?
-Yes, they are.
(3)-Is he writing a report?
-No,______ ______.
(4)-Is she counting insects?
-Yes,______ ______.