Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
A、decreaseItisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.
Somelazymenwouldrather_______thanwork.
Whathesaidinthemeeting_______everybodypresent.
Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.
Carelessnessmadehimfallinhisjob_______.
