—The air in Nanjing was much better during the Spring Festival because people were not allowed to let off firecrackers. —I agree. Everyone should do what he can the environment.
---____are your pants?---Ninety-nine dollars.
Tom ____a brother, but I ____.
---Which is the second month of the year?---_______.
---Let’s play basketball.---_______.But my basketball is not here.
---Why don’t you like history ?---Because itis _____.