I am ____grateful for the many kindnesses you have shown my son.

Is Tom at school today?No, He ’s at home ______ he has a bad cold.

All of us would have enjoyed the party much more if there _____ quite such a crowd of people there.

It’s your job________ the pop stars.

____the center of our planetary system was considered as heresy by the church in the Middle Ages.

Last Friday I saw some boys ______ behind Daniel, _____ the computer games.

The country’s chief exports are coal, cars and cotton goods, cars _____ the most important of these.

Tom has been a vegetarian ____principle for years .

The children should go to school instead of to support their families.

When I got out of the car and walked about among them, ____one old man who shook his head disapprovingly, they all began to cheer .