1. You (could’ve, could of) bought even more gifts.

2. The whole trip cost only $3000 which (led, lead) me to buy two more tickets.

3. (It’s, Its) been a long time since this car has had (it’s, its) muffler replaced.

4. I received a (compliment, complement) from the two (woman, women) about my posture.

5. The (principal, principle) reason I took this (course, coarse) was to learn the (principals, principles) for hiring the best (personal, personnel).

6. (Their, There, They’re) are more people (here, hear) today (than, then) (their, there, they’re) were yesterday.

7. I was (to, too) tired and (to, too) cold (to, too) drive (to, too) school.

8. It is (a, an) honor to offer you such (a, an) unique gift as (a, an) apple.

9. I hope you will (accept, except) my decision to leave. I have finished all of my work (accept, except) the final chapter.

10. Can you (advice, advise) me on which (coarse, course) to take? I am looking for some trustworthy (advice, advise).

11. The President’s speech (affected, effected) us all in different ways.

12. The cold weather certainly will (affect, effect) the price of crude oil.

13. I find reviewing just before bed to be a very (affective, effective) way to study.