2. He wants/is wanting to be a pirate!

3. My little brother does/is doing his home work now

4. Sam is going/goes to the cinema tomorrow

5. Rita prepares/is preparing for her exams at the moment

6. We have/are having English lessons three times a week​

1. My mum likes baking

Поскольку действие "нравится" постоянное, используем Present Simple.

2. He wants to be a pirate!

Поскольку действие "хочет" постоянное, используем Present Simple.

3. My little brother is doing his home work now

"now" указывает на Present Continiuous.

4. Sam is going to the cinema tomorrow

В предложении обозначены планы человека.

5. Rita is preparing for her exams at the moment

"at the moment" указывает на Present Continous.

6. We have English lessons three times a week​

Регулярное действие "трижды в неделю" указывает на Present Simple.

1.likes

2.is

3.is doing

4.goes

5.is preparing

6.have