Exercise 7. Choose the best option A, B, C or D.

Choose the best option A, B, C or D. It is thought that Google ______ cars may transform the way we move around cities in the future.

• driving

• driver

• motionless

• driverless

Choose the best option A, B, C or D. Retinal implants are meant to partially restore vision to people who have lost their ________.

• view

• scene

• scenery

• sight

Choose the best option A, B, C or D. Biotech drugs, which are ______ from living cells, provide some of the best efforts at curing diseases such as diabetes, Alzheimer's, Parkinson's, and HIV.

• done

• made

• caused

• formed

Choose the best option A, B, C or D. The cocoons of silkworms were first used ______ silk by the Chinese.

• to make

• for make

• to making

• to be made

Choose the best option A, B, C or D. Paper was first ______ to make paper money, playing cards or the world's oldest book the Diamond Sutra - in the 2nd century by the Chinese.

• to invent

• inventing

• being invented

• invented

Choose the best option A, B, C or D. The magnetic compass was first used to determine the correct ______ by the Chinese.

• way

• road

• path

• direction

Choose the best option A, B, C or D. Gunpowder was first used to make beautiful displays of ______ for celebrations in the 9th century by the Chinese.

• firing

• fires

• fireworks

• firework

Choose the best option A, B, C or D. IBM Watson is an artificially intelligent computer system ______ of answering questions posed in natural language.

• capable

• aware

• able

• fond

Choose the best option A, B, C or D. YouTube ______ to become the world's most popular video-sharing website since 2005.

• grows

• grew

• has grown

• have grown

Choose the best option A, B, C or D. Apple iPad ______ the single most popular tablet PC ever since 2010.

• has existed

• has stayed

• has remained

• has continued