Поставьте следующие предложения в форму множественного числа. 1. this man is an engineer. 2. i have a good pen. 3. this child is my son.

1. These men are engineers 2. I have  good pens. 3.
These children are my sons. 

1) These men are engineers.
2)  I have good pens.
3)  These children are my sons.