he works hard,because this is ( )important work A.a B.an C.the D._英语解答

he works hard,because this is ( )important work A.a B.an C.the D./

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解答

B.an
important [ɪm'pɔːt(ə)nt] 前面用an
he works hard,because this is an important work .这是一份重要的工作