Barack Hussein Obama, the present president of the USA, ________ a naughty (调皮的) boy at school.
A/An ________ can use his drawings to tell about beautiful mountains,the blue sea and many other things.
We can put the story ________ newspapers and ________ television.
—Liu Yun,________ this pair of glasses yours? —No,my glasses ________ on the bookcase.
Mrs.Green doesn’t like playing chess,but her daughter ________.
Our math teacher always ________ an old shirt.