It is because the flag-rasing ceremony starts early in the morning.
==>my ans:1. who hosts the ceremony?
==>book ans:The People's Liberation Army hosts the ceremony.
==>my ans:2. How big is the Tiananmen Square?
==>book ans:The area of Tiananmen Swuare is 4,000,000m2
==>my ans:3.When shall we have lunch today?
==>book ans:We shall have lunch today at 1 p.m.
更新1:
==>my ans:4.Shall we go to the zoo today? ==>book ans:No, we shall not go to the zoo today.
更新2:
==>my ans:5.Where are we go to the afternoon? ==>book ans:We are giubg ti tge Firbuddeb City in the afternoon. ==>my ans:6.What can we see in there? ==>book ans:We can see a large collection of paintings, calligraphy, porcelains and other antiques there.