Many kinds of animals are believed to have _________from the earth
A、withdrawnB
暂无解析
He works in our university as a visiting _______, not as a formal faculty member.
Pleasebeserious.Iamnot_______.Youshouldconsideritcarefully
Pinetreesareusuallybelievedto_______coldweather.
ProfessorSmithisalsothe_______oftheinternationalprogramoffice.Ifyouhaveanyproblemwhenyoustudyhere,youmaygotohimforhelp.
Inordertoincreaseouroutput,weneedtoimportmoreproduction_______.
