1. It took Joe 3 years to collect his stamps.
2. Joe and his friend are looking for some new stamps.
3. Stamps wiht flowers weren't so expensive as the others.
4. If I do well on the test, I can go to university.
5. Not to study for the exam was a mistake.
6. Rainy weather makes me feel nervous.
7. I saw Margaret crossing the street.
8. The old man watched the children playing in the park.
9. It is a boring lesson for the students.
10. It was a surprise for us to hear the news.