After working for twenty hours without any rest, the doctors were _______.
A、exhaustedA
暂无解析
Inordertoincreaseouroutput,weneedtoimportmoreproduction_______.
Pleasebeserious.Iamnot_______.Youshouldconsideritcarefully
Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.
Thisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
