ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
A、discouragedAfter working for twenty hours without any rest, the doctors were _______.
Asateacher,youshouldnot_______thestudentsfromaskingquestionsinclass.
Althoughthetrfficisnotbusy,helikestodriveata_______speed.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.
This river forms a natural _______ between China and Korea.
