Pinetreesareusuallybelievedto_______coldweather.

Thisriverformsanatural_______betweenChinaandKorea.

Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.

Wedonothavea_______schoolinourinstitute.ThehighestdegreeweprovideforthestudentsisaB.A.andaB.S..

Itisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.