Answer: Susan doesn´t study French at school.
Jhon and Linda don´t play basketball in a team
Step-by-step explanation:
To form the negative In a present simple, the auxiliary don’t is used for or goes with I, you, we, they and doesn’t goes with he, she, i.
Therefore the correct negative form with the present simple for both sentences include
1. Susan doesn´t study French at school.
which can also be written as: She doesn't study french at school
2. Jhon and Linda don´t play basketball in a team
which can also be written as :They don´t play basketball in a team