1.①John, you should feed the food to the baby in small pieces.

②Butterflies feed on a sweet liquid produced by flowers, which bees and other insects collect.

2.①If you are hungry, meals can be served to you in your room.

②(2017·江苏卷)When the eggs were hatched, the baby birds made the similar chirp to their mothers—a sound that served _as their regular “feed me！” call.

③The hotel promised to provide good service(serve) to every customer.

3.①(浙江卷)Mike is eager to stay(stay) away from the busy city life for a while.

②Parents are always eager for the time when their children should be able to be independent to solve their problems.