A. they involve
B. involver
C. involving
D. which they involve
Jawaban : C
6. ___ a tornado spins in a counterclockwise direction in the northern hemisphere, it spins in the opposite direction in the southern hemisphere.
A. However
B. Although
C. Because Of
D. That
Jawaban : B
7.The Caldecott medal, ___ or the best children's picture book, is awarded each January.
A. is a prize which
B. which prize
C. which is a prize
D. is a prize
Jawaban : C
8. Sports medicine is a medical specially that deals with the identification and treatment of injuries to persons ___.
A. sports are involed
B. involed in sports
C. they are involved in sports
D. sports involve them
Jawaban : B
9. The Wilmington Oil Field, in long Beach, California, is one of ___ oil fields in the contnental United States.
A. productive
B. the most productive
C. most are productive
D. productivity
Jawaban : B
10. Thunder occur as ___ though air, causing the heated air to expand and collide the heated air to expand and collide with layers of cooler air.