I.

1. D

2. B

3. C

4. D

5. D

II.

1. riding 

2. How many

3. are some

4. traditional/natural

5. the same as

III. 

1. calories

2. riding

3. food

4. more

5. less

IV.

1. They feel sastisfied and proud

2. Because they have to work and take care of their families

3. No, we can't

4. We can make and donate gift baskets for the old homeless people on holidays

5. Our family can also spend only one Saturday morning a month collecting rubbish in our neighbourhood

#No_copy

#Cow_deeptry