来自董长青的问题
thenewonewayscheme____forjustoversixmonths,andtraffichasimorovedconsiderablyasaresult.A.hasbeenoperatedB.hastobeoperatedC.hasbeenoperatingD.hadoperating为什么选C?
thenewonewayscheme____forjustoversixmonths,andtraffichasimorovedconsiderablyasaresult.
A.hasbeenoperatedB.hastobeoperatedC.hasbeenoperatingD.hadoperating
为什么选C?
1回答
2020-06-07 19:45