A.a,a | B.an,the | C.an,/ | D. /,a |
A./; / | B./; a | C.a; a | D.a; / |
A.the, an | B./, the | C.the , a | D./, a |
A. the; a | B. the; / | C. a; the | D. a; / |
A.a; the | B.a; a | C.the; the | D.the; a |
A.不填; 不填, 不填 | B.an; a;a | C.不填; 不填; a | D.a; an; 不填 |
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