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--Oh, ________. I bought it yesterday.
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22. - This is _______ useful dictionary, I think.
- So it is, and it’s _______ unusual one .
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21. - -Your dress is very beautiful.
--Oh, ________. I bought it yesterday.
A. no. B. yes C. Thank you. D. Just so-so, I think.
22. - This is _______ useful dictionary, I think.
- So it is, and it’s _______ unusual one .
A. an, / B. an , an C. a , an D. a , a