This river is so big that it is impossible to build a _______under it without modern technology.
A、canalB
暂无解析
After working for twenty hours without any rest, the doctors were _______.
Pleasebeserious.Iamnot_______.Youshouldconsideritcarefully
Some states in the United States _______ people tocarry guns.
Pinetreesareusuallybelievedto_______coldweather.
The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.
