$4$ Look at the sentences and the underlined modals. What does each sentence express?Write N $($necessity$)$ or A $($advice$)$ next to each sentence

$\mathrm{.}1$ You should take wild birds that are hurt to a wildlife center where they can get help

$\mathrm{.}2$ You don't need to give a cat a bath. They wash themselves every day.

$3$ I need to get the eggs from the chicken house so that I can make breakfast.

$4$ We have to buy some cat food today because we don't have any more.Some dogs will eat until they get sick, so you have to give them only the amount of food they need.