21．We are sure to fulfill promise we made to the world: The Beijing Olympic Games will be green event.
A．the; / B．the; a C．the; the D．a; a
22．—May you have a good trip. And I will leave for Xi’an tomorrow.
— .
A．May you have a good trip B．Me, too
C．Sorry, I won’t do that D．Thanks ,the same to you
