Some business such as oil refining and natural gas productions are operated by
A. sole proprietorships.
B. partnerships.
C. corporations.
D. none of the mentioned three.
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I couldn't believe my______when I saw the address and the name.
A. eye
B. eyes
C. my both eyes
A．againB．alsoC．too
A. again
B. also
C. too
The old woman thought the Indian was the doctor.
A. Right.
B. Wrong.
C. Doesn't Say.
Mary often goes to work late because______.
A. she can't go to bed on time
B. she doesn't like her work at all
C. something is wrong with her watch
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