Using ser + de (or del) I would appreciate any help :)?

del is for like de + el (masculine) de la is for de+ la (feminine). # 2 should be de las chicas #4 de la turista. #5 de los profesores. #7 de la joven #8 de los chicos #9 de la directora . the rest are right. You're making it harder than it is. Only you del for de + el. Review what I wrote and buenas suerte (good luck)