—Sonia, is this your dictionary?—No, it’s not ______. Ask Alan, Maybe it belongs to ______.
---Where is your father? ---He isn’t here. He __________ Yushu to help the people in trouble.
---I will go to Guangzhou this summer vacation. ---__________.
---Why is he so happy? ---He __________ the volunteering club and works for the old people.
---The girl is practicing English, ___________? ---Yes, she is. She is good at English.
---___________ tall building it is! ---It has over one hundred floors.