Question

Fill in the blanks below with the correct reciprocal pronouns:

Alex and Martha say goodbye to
a0 after school.

The puppies playfully bit
a1 on the nose.

The mom and dad loved
a2 very much.

The children fought with
a3 on the playground.

Answer 1

I believe the answers are
1. Each other
2 One anther
3 One anther
4 Each other
Hope that helps you.

Answer 2

A reciprocal pronoun is a pronoun which is used to indicate the number of people that are executing a particular action.
There are two types of reciprocal pronouns, they are 'each other and one another'. Each other is used when the action executed is carry out by two people and one another is used when the action executed is carry out by three or more people.
The answers to the above questions are as follows:
1. Alex and Martha say goodbye to EACH OTHER.
2. The puppies playfully bit ONE ANOTHER on the nose.
3. The mom and dad love EACH OTHER very much.
4. The children fought with ONE ANOTHER on the playground.