Fill in the blanks with the appropriate words from the list below.

1. As I stumbled down the stairs, I reached out to the railing.
2. Common colds are caused by . They spread quickly and easily throughout the general population and can make people quite sick.
3. I get migraines. The headaches are not common but they can be quite bad.
4. Littering is a minor . Although it is not a serious crime, it is against the law to litter.
5. The language institute's acquired computers are very nice. They replaced the old one's which were too slow and crashed often.
6. After buying a new car, I completed the online. I had to give them a current address.
7. All of the students who completed the final exam were that they had passed. They had all studied hard and reviewed before the exam.
8. After the car accident, John hired to sue the other driver. He was confident that the lawyer would protect his interests.
9. Please stop your pencil on the desk. I know you aren't trying to annoy me, but the noise is quite irritating.
10. The of oil off the coast was a mixed blessing. On the one hand, it is good for business. On the other hand, there is the potential for serious environmental damage.