1. I have had great deal of trouble_______________.(跟得上班上的其他同学)
　　2. I don't mind your_____________(你延期做出决定) the decision as long as it is not too late.
　　3. In the Chinese household, grandparents and other relatives_____________(起着不可缺少的作用) in raising hildren.
　　4. Mark often____________________________(试图逃脱罚款) whenever he breaks traffic regulations.
　　5. When I __________________(发现他骗我) I stopped buying thins there and started dealing with another shop.

　　答案
　　1. keeping up with the rest of the class
　　2. delaying making
　　3. play indispensable roles
　　4. attempts to escape being fined
　　5. caught /found him cheating me