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- Do you know the answer __________ the question.[ ]
- Do you know the answer ______ question? [ ]
- Do you know the answer _____ the question?[ ]
- Do you know the answer ______ the question? [ ]
- Nobody knows the answer _______ this question.[ ]
- Do you know the answer _____ the hard question?[ ]
- Did you know the answer _____ the question? [ ]
- I don’t know the answer _____ the question. [ ]
- Do you know the answer_____ the question? [ ]
- Find the answer _____ the question, please. [ ]