People are not aware of the problem of overpopulation.

A. Harvard is one of the world’s most prestigious universities

B. What is today a great university started out small

C. John Harvard was key to the development of a great university

A. The mother wanted to make a cup of milk for the son.

B. The mother was asked to make a cup of milk for the son.

C. The mother promised to make a cup of milk for the son.

A. new interesting film

B. film interesting new

A. to explain how our memory processes information.

B. to describe the sensory register.

C. to explain why we sometimes forget information.

A. It was in London that

B. It was in London where