John_______tobeapoliteman.Butinfactheisveryrude.
A、pretendsItisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.
Thisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
Withoutapropereducation,peoplecould_______allkindsofcrimes.
