Wecannottrusthimanymorebecauseheoften________hisduty.
A、owesWiththehelpofthegovernment,alargenumberofpeople---_______afterthefloodin1991.
Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.
Wedonothavea_______schoolinourinstitute.ThehighestdegreeweprovideforthestudentsisaB.A.andaB.S..
Afterworkingfortwentyhourswithoutanyrest,thedoctorswere_______.
Thisriverformsanatural_______betweenChinaandKorea.
