[ a, an, the, Zero Article ]
It will ask whether you wish to turn on ___ Merchant Key Encryption.
A. A
B. An
C. The
D. No article required

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Grammar › ViewThe teacher had the students ______ up the classroom.
A. clean
B. cleaned
C. cleaning
D. to clean
Tenses › View
She ______ to bed at 10 o’clock yesterday.
A. go
B. goes
C. went
D. going