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