4. Arboreal animals_______trees as habitas.

a. use
b. used
C. uses
d. using

5. To demonstrate chemical change, the teacher______a sheet of paper.

a. burn
b. burner
C. burning
d. Burns

6. I_____the cooking sometimes when mother is at work.

a. did
b. do
C. does
d. doing

7. The kidneys________as big as your fist and reddish-brown in color.

a. are
b. has
C. have
d. is

8. Eric_______to lift a bag that contains 50 kilograms of clothes.

a. true
b. tries
C. try
d. trying

9. Bones________brittle and weak due to lack of calcium.

a. became
b. become
C. becomes
d. becoming

10. Fats in the artery________the flow of blood to the heart.
a. block
b. blocked
C. blocking
d. blocks​