[ Grammar ]
Which is correct?
A. I wonder if you could tell me do you know the answer.
B. I want to know why do you know the answer?
C. Could you tell me do you know the answer?
D. Do you know the answer?

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Mixed Tenses › ViewJohn _________________ in the same house since he left school.
A. has lived
B. had lived
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Places in Town › View
There aren’t ______ cafés near my house
A. some
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