It is our children and our childrens children who______pay for the mistakes we make today.

Small children can not ______ the difference between right and wrong. It is our duty to te

It is essential that our suppliers （)both competitive in terms of price, and extremely reliable.

The operation of our inside organs is different from that of muscles and nerves in that it

EDriving cars trucks and motorcycles is an important part of our lives. We do it every da

The mass media is a big part of our culture yet it can also be a helper adviser and teac

We all enjoy our freedom of choice and do not like to see it____when it is within the legal and moral boundaries of society.