The plane got back to the airport and landed＿＿＿＿at last. 

Can you believe that in _____ a rich country there should be _____ many poor people?

Nowadays, Chinese consumers are increasingly aware of their rights.       , safety and quality issues remain top concerns.

. Tommy’s parents thought he was at school, but _______ he was in an Internet bar. 

Once you are        , your life will          change!