Перделать из прямой речи в косвенную: Mother says, 39;Why are you

1. Mother says,"Why are you so late, John?" Mother asks John why he is so late.
2. Mary says, " Mother, where is my bag?" Mary asks mother where her bag is.
3. Father asks," Where are the children?" Father asks where the children are.
4. Mother says," When are the classes over, Dick?" Mother asks Dick when the classes are over.
5. Tony says," Why are you so sad, Helen?" Tony asks Helen why she is so sad.
6. She asks Alice," When can you come and see us ?" She asks Alice when she can come to see them.
7. The students say," What exercises must we do in writing" The students ask what exercises they must do in writing.