_____ you will carry out my instructions or I will offer the job to someone else.

A. Either
B. Unless
C. Until
D. Whether
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科目:高中英語(yǔ) 來(lái)源:河南省模擬題 題型:單選題

_____ you will carry out my instructions or I will offer the job to someone else.
[     ]
A. Either
B. Unless
C. Until
D. Whether

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