The butler did it. He had the only access to the victim's bedroom last night. Moreover, several guests have testified to overhearing the butler making threats to the victim's life after dinner was served.

2. The natives of Poquer Island have no modern technology. There are several sources of food throughout the year, including fish, breadfruit, local game and rudimentary farming. Tribal dance rituals are performed throughout the year by the local villagers in celebration of weddings, religious celebrations and festivals.

3. The Johnson's living room lights are on. So, they must still be home since they never go out without turning off all of the lights.

4. If you invest your life savings in a late model Italian sports car, you won't regret it. The insurance premiums for such a car, however, are prohibitive.

5. Farnsworth has a terrible allergy to pet hair. He should never have become a veterinarian.

6. Only you and I had access to the office. You must be the culprit since I returned to the office this morning and the blueprints were already missing.

7. Should you reconsider your decision, put all relevant documents in the return envelope and send it to the original owners. Your deposit will be returned within six weeks.

8. Homer claimed that he returned the books to the library on Thursday. The librarian on duty that day disagreed with Homer's testimony. The matter is still pending.

9. The morning train shuttle to Boston must have left already. The train platform is empty and it's already past noon.

10. Schmuckers Peanut Butter is the best in the world. Gina finds the taste disgusting and will only use Peter Pan.

11. Because of the sudden rain, my uniform was ruined. There was no other choice but to return home for a change of clothes. There was no way to have foreseen this course of events.

12. Since there are sufficient funds for the new computer system, there is no doubt that the old one should be replaced. Besides, the hardware vendor will pay for the installation and give us an extended warranty on the new system.

13. Herbert never dines late at night. So, that couldn't have been him at the diner since it was after midnight.

14. There are several kinds of guitars you could buy at this time: there are classical and flamenco guitars that use nylon strings and have wide fretboards; steel-stringed guitars are generally used for popular music and jazz and generally have a tapered neck and fretboard; electric guitars require an amplifier and speaker to produce music and are used for a variety of popular music.

15. College students are taking thousands of courses this summer. Barker is a college student. Therefore, Barker is taking thousands of courses this summer.

16. Simon prefers using German photographic equipment. This is because he prefers their high manufacturing standards used in producing their camera and lens systems.

17. Hillary joined the Navy because she wanted to see the world while training for a technical position.

18. You shouldn't argue with Fenwick. He has a temper and gets rather rude when engaging in any discussion.

19. You used my toothbrush this morning. I noticed that yours is missing from the rack and mine is covered with toothpaste.

20. The rabbit tracks lead into the woods, past the clearing and behind that pile of rocks. That must be where it's hiding.

21. Boris stole my pen. I saw him do it.

22. Boris stole my pen because he thought that I took his pen.

23. Cheryl is popular. She's always invited to parties and last year she was voted Homecoming Queen.

24. Cheryl is popular. It's because she's pretty, athletic and rich.

25. Brandon lives in Bridgeport. It's on his driver's license