Inordertoincreaseouroutput,weneedtoimportmoreproduction_______.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
Asateacher,youshouldnot_______thestudentsfromaskingquestionsinclass.
Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
We won ’t allow any foreign country to _______ in our internal affairs.