feed,take,go,do,water,get up.
в примере глагол feed, остальные:
1.Mum doesn't have to go shopping.Dab has already bought fruit and vegetables.
2.The boy doesn't have to get up early in the mornings.His lessons begin at 2 pm.
3.The children don't have to do the homework for tomorrow.They are going to the museum.
4.The student doesn't have to take any exams this year.He ll have them next year.
5.You don't have to take a cake.I have bought a tasty apple pie.
6.Dab doesn't have to water the plants.My brother watered them in the morning.
any в 4ом предложени подразумевает только единственное число, так что откуда там exams я не знаю. Опечатка?