[ Interjections, Tag Questions and Nouns of Direct Address ]
What is a common noun of direct address used in scientific presentations?
A. Colleagues
B. Data
C. Experiment
D. Conclusion

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A. I reached
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Question Tag › View
I wrote 12 poems on my own.
A. Did I?
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_____ this weekend?
A. Are you going out
B. Will you go out
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