168.We volunteered to collect money to help the( )of the tsunami.

142.The town decided to( )water by restricting the watering of lawns.

141.In( )I see why he failed in the exam. He had never actually done his homework.

140.When will the new driving laws come into( ).

139.China has hundreds of islands，( )the largest is Taiwan.

138.Can you give me a case ( )this phrase can be use?

137.Yesterday she sold her car，( )she bought a month ago.

136.Life is a long race( )we compete with others to go beyond ourselves.

135.John was asked to( )the man who stole his wallet.

134.If you want to get the driver‘s( )， you should take some courses first in the traffic school.

133.The police officers here do not usually( )guns.