ProfessorSmithisalsothe_______oftheinternationalprogramoffice.Ifyouhaveanyproblemwhenyoustudyhere,youmaygotohimforhelp.
A、detectiveThedoctors_______themedicinestothepeopleinthefloodarea.
Pinetreesareusuallybelievedto_______coldweather.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
Weare_______attherapidprogressMarkhasmadeinthissemester.
Severalloudspeakersare_______fromtheceilingandwecanhearthespeakerveryclearly.
