1.Cycling is good exercise.It strengthens (strength) all the muscles of the body.
2.This money is intended (intend) for the development of the tourist industry.
3.The book provides a theoretical (theory) answer to this question.
4.It became increasingly expensive (expense) to hire casual workers.
5.What does the green building bring about to us?
6.In the end you gain very little advantage at great expense.
7.I was feeling sort of tired from the trip to New York.
8.He talked about the moon as if/as though he had been (be) there.