The fire was caused by an ______ fault.
A. electricity
B. electronic
C. electrical
D. election
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The company has spent more than $300 million on promotion for the _____.
A. brand
B. branch
C. brain
D. brave
Drug manufacturing is the most ______ business in America.
A. profit
B. profitable
C. prohibit
D. professional
Customers are required to check ______ at noon.
A. in
B. out
C. up
D. with
The president promised that he would be ______ to the country.
A. loyal
B. logical
C. local
D. loan