Form 9.Famous inventors and inventions

Select what is right a),b) or c)

1.An  inventor of a bulb is .....

2.An  inventor of a telephone is .....

3.An  inventor of a mercury thermometer is .....

4. Alexander Graham Bell  has invented a telephone in ...

5.Galileo Galilei is an  inventor of a water thermometer ...

6.Blaise Pascal has   invented the first ... 1645.