-Transformation
It's a quarter to ten.
=> It's nine...
We have a break in the morning. It lasts twenty minutes. => We have a....
Mrs. Mai has a son. He is twelve years old. => Mrs. Mai...
There are some reference books on the shelves at the back of the library. => The library.....
There are some reference books on the shelves at the back of the library => The shelves....
-Transformation It's a quarter to ten. => It's nine forty-five. We have a break in the morning. It lasts twenty minutes. => We have a.. thirty-minute break.. Mrs. Mai has a son. He is twelve years old. => Mrs. Mai..has a twelve-year-old son.. There are some reference books on the shelves at the back of the library. => The library...has some some reference books on the shelves at the back of it.. There are some reference books on the shelves at the back of the library => The shelves at the back of the library has some reference books ....