10/ Reorder the words to make a meaningful sentence
1. They were certain to be able to build the country into a powerful one.
2. The mother was astonished to hear that her smart son failed the exam.
3. It was unprofessional of her not to prepare for the presentation.
4. Passers-by are delighted that the new underpass is being built
5. It It is necessary for the city to build a skytrain system in order to solve its traffic problems.