It is high time that we started to consider what ________  we should take to reduce heavy smog caused by traffic fumes and other pollutions.

Many people came to the meeting，but   them who left early was 35．

Independent innovation has brought us a________in profits,40% higher than in the traditional way.

 Through educating himself and strengthening his own will power, every individual should be able to ________ the temptation of cigarettes.

The librarian had to ______ the naughty boy in order to let others concentrate on their books.