product,production,productive,productivity
1.We have introduced a number of such__production____lines.
2.This scheme is the_product____of our careful thought.
3.It is said that desert can be turned into___productive__land.
4.We should concentrate our efforts on increasing the__productivity ___of labour.
effect,effective,effectively
1.The measure turned out to be very__effective___.
2.The___effect__of some medicine are not immediate.
3.In order to deal__effectively ___with air pollution,we will set up a special committee.
satisfy,satisfaction,satisfactory
1.It was obvious that the royal family were not _satisfied__with the present situation.
2.The management of the business is not__satisfactory ___—it needs improving immediately.
3.I hope I will be able to do everything to your___satisfaction__.
