A.the; / | B.a; the | C.a; a | D.the; a |
A.不填;a | B.A;不填 | C.The;the | D.A;a |
A.a; words | B.a; a word | C./; words | D./; a word |
A.the; the | B.a; / | C.the; a | D.a; the |
A.an; the | B.an; a | C.; the | D.; a |
A.the ; × | B.a ; / | C.a ; the | D./ ; / |
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