Unlock 3 Unit 6

George de Mestral ___ Velcro in 1941, after he noticed burdock seeds sticking to his dog's fur.

• was invented

• is invented

• invented

• invents

Eagle Eyes glasses ___ by NASA to help protect astronauts' eyes from harmful radiation.

• created

• was created

• is created

• were created

3D printing ___ today by automobile companies to print car parts, and by medical companies to print artificial body parts, such as ears.

• is used

• was used

• using

• used

Mercedes ___ the Bionic Car to resemble the shape of a boxfish. This made it stronger and reduced weight and air resistance.

• were designed

• designed

• is designed

• designing

The telephone ___ in 1876 by Alexander Graham Bell. Nowadays, millions of people ___ hours each day making calls, sending messages and playing games on their modern smartphones.

• was invented / spend

• invented / spent

• was invented / are spent

• is invented / spent

Choose 2 correct answers:

Steve Jobs, the man ___ co-founded Apple in 1976, was CEO of the company when the iPod and iPhone were launched.

• which

• who

• that

• how

Al-Khwarizmi ___ was a Muslim mathematician from Baghdad, introduced the concepts of algebra to European mathematicians.

• , that

• , which

• which

• , who

The inventions ___ have had the biggest positive impact on humanity are the printing press, the electric light and the car.

• which

• , which

• who

• , that

The Mays Electrical Car is the first first Oman-produced car ___ runs on electricity instead of petrol. It will start production in 2023.

• that

• , which

• , that

• who

The compass, ___ is one of China's four great inventions, changed the world by allowing sailors and explorers to navigate the seas more safely and accurately.

• who

• what

• which

• that