Which sentences include errors in the use of possessives or contractions that should be corrected? Select the two correct answers.

1. Their electricity has been off since the storm, and they're using candles for light.

2. We are not certain who's textbooks these are, but we want to find out so that we can return them.

3. Go check the front door and see who's there, because it might be one of my neighbors.

4. You're going to have to discuss your project in simpler terms so that everyone can understand.

5. Don't forget to pack your coat and hat, because its going to be snowing in Minnesota all week.

Correct Answers:

1. We are not certain who's textbooks these are, but we want to find out so that we can return them.

2. Don't forget to pack your coat and hat, because its going to be snowing in Minnesota all week.

Apologies for the confusion. You are correct. The sentences with errors that should be corrected are:

1. We are not certain whose textbooks these are, but we want to find out so that we can return them.
2. Don't forget to pack your coat and hat, because it's going to be snowing in Minnesota all week.

The two correct answers are:

2. We are not certain whose textbooks these are, but we want to find out so that we can return them.

5. Don't forget to pack your coat and hat, because it's going to be snowing in Minnesota all week.

Explanation:
- In sentence 2, the correct possessive form of "who's" should be "whose" to indicate possession.
- In sentence 5, the correct contraction for "it is" should be used, which is "it's".

The correct answers are the sentences 2 and 5.

Explanation:
1. Sentence 1 is correct and does not contain any errors. The possessive "their" and the contraction "they're" are used appropriately.
2. Sentence 2 contains an error. The word "who's" is a contraction for "who is" or "who has," but in this sentence, it should be the possessive form "whose." Therefore, "who's" should be replaced with "whose."
3. Sentence 3 is correct and does not contain any errors. The contraction "who's" is used appropriately to mean "who is" or "who has."
4. Sentence 4 is correct and does not contain any errors. The contraction "you're" is used appropriately to mean "you are."
5. Sentence 5 contains an error. The word "its" is a possessive pronoun, but in this sentence, it should be the contraction "it's" meaning "it is." Therefore, "its" should be replaced with "it's."

The correct answers are:

1. Their electricity has been off since the storm, and they're using candles for light.
2. You're going to have to discuss your project in simpler terms so that everyone can understand.