Reflexive Pronouns 5to 2

You are a good student, so you can do it by ________.

He is alone at home but, he is preparing food by________.

Children are alone at home (no parents) but, they study hard by ________.

I don´t have internet but, I can do an investigation by ________.

I can prepare my breakfast, lunch and dinner by______.

The puppy is happy because it eats meat, chicken and fish, all by _______.

We decided to study Frech and Italian, both by _______.

You (plural) need to work, study and pay the bills by _______.

Daniela is doing homework, all by _______.

Charly was angry because he did all the homework by _______.