10.At the Mid-Autumn Festival children carry _________ lanterns. * A. beautify B. beautiful C. beauty D. beautifully 11. We __________ our house with a lot of flowers to welcome Tet * A. decoration B. decorate C. decorated D. decorating 12. People go to the pagoda to pray for good fortune and _________. * A. happy B. happily C. unhappiness D. happiness

10.At the Mid-Autumn Festival children carry _________ lanterns. 

A. beautify B. beautiful C. beauty D. beautifully

=> trước danh từ phải dùng tính từ. Adj + N => Beautiful (Adj) + lanterns (N)

11. We __________ our house with a lot of flowers to welcome Tet

A. decoration B. decorate C. decorated D. decorating

=> Decorate + something

12. People go to the pagoda to pray for good fortune and _________. 

A. happy B. happily C. unhappiness D. happiness

=> happiness: sự hạnh phúc.