All the memories of his childhood had _______ from his mind by the time he was 65.

ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.

Wewon’tallowanyforeigncountryto_______inourinternalaffairs.

Professor Smith is also the _______ of the international program office. If you have any problem when you study here,you may go to him for help.

Althoughthetrfficisnotbusy,helikestodriveata_______speed.