For a moment nothing happened, then       all shouting together.

A．voices had come

B．did voices come

C．voices would come

D．came voices

根据各地城市道路建设的经验，对于双车道多用( )m，四车道用( )m，六车道用( )m。

A．8.0～8.5；16～18；19～21

B．7.5～8.5；15～16；20～22

C．7.0～7.5；14～16；20～23

D．7.5～8.0；13～15；19～22