(a) housefly = (iii) sponging

sponging mode of feeding is present in insects which helps them sucking food without cutting or tearing the food particle.

(b) cockroach = (i) biting and chewing

cockroaches have basic arrangement of teeth, which helps them biting and chewing food particles.

(c) mosquito = (iv) sucking

mosquitoes feed by sucking blood from bodies of humans and other animals.

(d) infants = (ii) suckling

suckle means feeding a baby or young animal from breast.