John_______tobeapoliteman.Butinfactheisveryrude.
A、pretendsIhavenotheardanythingfromhimsincehis_______.
Bothsugarandsaltcan______inwater.
Thedoctors_______themedicinestothepeopleinthefloodarea.
Pleasebeserious.Iamnot_______.Youshouldconsideritcarefully
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.