Please check this.

Question

1. We are going to tell John what happened.
John= indirect object
2. Are you going to explain to your parents why you arrived home late? (Is this sentence grammatically correct?)
Parents=indirect object
3. She isn't going to call us tonight.
Us=direct object
4. I love my mom a lot.
Mom=direct object
5. They aren't going to lend her the money.
Her= indirect object
6. You never tell me the truth.
Me=indirect object
7. Are you going to write to your relatives?
Relatives= indirect object
8. She doesn't hate them.
Them= direct object
9. I always do them(homework).
Them=direct object
10. Are you going to invite her to the party?
Her=direct object
11. I am not going to tell her the truth.
Her=indirect object
12. I am not going to explain anything about what happened to them.
Them=indirect object

Answer 1

1. We are going to tell John what happened.
John= indirect object correct

2. Are you going to explain to your parents why you arrived home late? (Is this sentence grammatically correct? yes)
Parents=indirect object incorrect

3. She isn't going to call us tonight.
Us=direct object correct

4. I love my mom a lot.
Mom=direct object correct

5. They aren't going to lend her the money.
Her= indirect object correct

6. You never tell me the truth.
Me=indirect object correct

7. Are you going to write to your relatives?
Relatives= indirect object incorrect

8. She doesn't hate them.
Them= direct object correct

9. I always do them(homework).
Them=direct object This sentence doesn't make sense.

10. Are you going to invite her to the party?
Her=direct object correct

11. I am not going to tell her the truth.
Her=indirect object correct

12. I am not going to explain anything about what happened to them.
Them=indirect object incorrect

Indirect objects in English do NOT have the preposition "to" or "for" in front of them.

Answer 2

direct and indirect object exercise

Answer 3

Cheaters