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

问题描述:

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

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