---Why can’t I park my bike here ? ----_______________.
---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.
Look at the picture. We are supposed to____________.