10. ____________originated in China.
A. muscle
B. harmony
C. body parts
D. acupuncture
11. _______ is the controller of the body. Led by the brain and nerves, it allows us to move, talk and feel emotions.
A. Circulatory system
B. Digestive system
C. Nervous system
D. Skeletal system
12. As planned,I _______ my parents this weekend.
A. am going to visit
B. visit
C. will visit
D. visiting
13. I feel terrible. I think I (be) sick.
A. am
B. am being
C. will being
D. will be