Carelessnessmadehimfallinhisjob_______.
Withoutapropereducation,peoplecould_______allkindsofcrimes.
Bothsugarandsaltcan______inwater.
Ihavenotheardanythingfromhimsincehis_______.
Severalloudspeakersare_______fromtheceilingandwecanhearthespeakerveryclearly.
Itisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.