Відповідь:

1) I don't have a favorite lesson. I use good school supplies, a pen and a notebook

2) I don't have many friends.

   My sister has a TV in her room

Пояснення:  

2)  It seems like you have two separate statements in your question:

"I don’t have got many friends."

"My sister have a TV in her room."

   Let's address each of these:

"I don’t have got many friends."

The correct sentence should be: "I don't have many friends." This is in the present simple tense, indicating your current lack of many friends. The correct form is "have" (not "have got") in this context to express possession or existence.

"My sister have a TV in her room."

The correct sentence should be: "My sister has a TV in her room." This is also in the present simple tense, indicating that your sister currently possesses a TV in her room. In the third person singular (like "she" or "my sister"), we use "has" instead of "have."