—Listen! Someone is singing in the next room. Who ____ it be? Is it Li Wei?—No, it ______ be her. She is at school now.
-Please let me know when you come up with a good . -Don’t worry. I will.
-I think exercising every morning is good for our health. -Yes. I agree you.
—You should exercise every day. —__________.
—Bob, it’s getting cold outside. __________ take a jacket with you? —All right, Daddy.
His grandpa is __________ old __________ do any housework.