Choose the correct item.
1 Ready-made food vary at/in nutritional
value and quality.
2 Berik isn't very keen on/in joining a gym.
3 The family meal went on for/at many hours.
4 Erke's school broke out/up for the summer
holidays.
5 There are a lot of healthy food options at
the new café.
6 You should avoid food that is high in/on
at is high in/on fat.