----- I can ’t see the words on the blackboard clearly.----- Why, your eyes need _____ perhaps you need _______ glasses.
The building used to be splendid but now it is _____.
__ number of people who___ killed or injured reached more than 400,000.
Only if you practice more _________ English well.
We were put in a position ___ we had to answer violence with violence.
The son tried to persuade his father _________ smoking.