____ we are alone, we can speak freely.

Over time my memory has developed        much that, like an elephant, I never forget anything I have been told.

I developed very slowly and it took nearly two hundred years        I was built as an analytical machine by Charles Babbage.

_____ the boy is determined to do something , no one can stop him.

It is because she loves her students _____ she is respected by them. 

It is considered unwise to give a child _______ he or she wants.

Government should make sure ____ all sculptures are kept well when removed.

In America, many people waste a lot of food _____ in Africa people haven’t enough to eat.

Playing balls together is a kind of activity_____ every player needs to be well-cooperated together.

______ I went to London, I was strongly impressed with the beautiful buildings.