Manykindsofanimalsarebelievedtohave_________fromtheearth
A、withdrawnThisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
Freemedicalserviceis_______tonearlyallthecollegestudentsinChina.
John_______tobeapoliteman.Butinfactheisveryrude.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.