5 предложений с определённым артиклем и 5 предложений с неопределённым артиклем)))пожалуйста помогите)

1.I will come in an hour. 2. he didn't say a word. 3 What a clever man! 4 She is quite a young girl. 5 It is not so simple a problem as it seems. 6 pass me the bread, please. 7 the water in this river is very cold. 8I like the music of this ballet. 9 All the students of our group attended the meeting. 10 the big house at the end of the street is mine.