Just now,when I walked past your house, I saw your son .

Jack ____ to help our Chinese teacher carry books yesterday morning.

There is a blackboard ______ our classroom. [ ]

Under______ reform program announced on Nov 15, the government has decided to give____ green light to couples wanting to have two children if one of the two parents is an only child.

The opening ceremony of the 29th Olympic Games started ______ August 8thin the National Stadium in Beijing. [ ]