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21. - You’ve dropped ________ “s” in the word “necessary”.
- Oh, ________ letter “s” is doubled.
A. a; a B. a; the C. an; the D. the; the
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21. - You’ve dropped ________ “s” in the word “necessary”.
- Oh, ________ letter “s” is doubled.
A. a; a B. a; the C. an; the D. the; the