Read the article again and choose the best answers, A, B or C.

1 Nathaniel Baldwin designed

A headphones he was able to sell.

B the earliest headphones.

C the best ever headphones.

2 The earliest headphones were probably used by

A theatres.

B the navy.

C telephone operators.

3 When people first got telephones they

A stopped going to the theatre.

B could listen to the theatre from home.

C didn't need headphones.

4 In the 1980s, people liked using earphones because

A they weren't large and heavy.

B they never fell out.

Cthey were worn over the head.

5 Earphones can create problems because users A can't hear anything.

B have the sound too loud.

C don't talk to other people.

6 Big headphones are popular now because of their

A cost.

B quality.

c design.