This river is so big that it is impossible to build a _______under it without modern technology.
A、canalB
暂无解析
Carelessnessmadehimfallinhisjob_______.
Healwayshasalotof_______ideasinhismind,andsometimeswedonotevenknowwhatheisthindingabout.
Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
Wecannot_______allthemagazinestogether.
He_______tostudyharderinthefuturesothathecouldhavemoreopportunitiestofindabetterjob.
