Language Hub Intermediate B1+ , Unit 5.2., Passive Voice

The project ______ (set up) by De Watts after he read an article about bottled air.

Since the company started, 200 jars ______ (sell) to customers in China.

The jars of air _____ (often buy) as gifts for wealthy customers' friends.

Jars of Aethaer can ______ (order) online.

Right now new 'air-gricultural' workers ______ (train) to collect and bottle the product.

So far the health benefits of Aethaer ______ (not prove) by scientists.

This year a Scottish businessman ​ (a)   selling his country's cheapest natural resource - seawater. The water ​ (b)   from the clear northern seas, and then ​ (c)   in restaurants for cooking. Since the New Years, 20 orders ​ ​ (d)   from all over Europe.

• started
• is collected
• is used
• have been received
• is being used
• was collected
• had started
• was being started
• was received
• were being received

Plastic rubbish is a serious problem, but now, in Ghana litter ​ (a)   handbags. The process is simple. Plastic water containers ​ (b)   from the streets. After they ​ (c)   , they ​ (d)   into the bags.

• is being turned into
• are picked up
• are cleaned
• can be made
• could be made
• is turned into
• are being cleaned
• were picked up
• have been picked up
• have been cleaned

Gary Dahl, the inventor of the Pet Rock, ​ (a)   recentlyaged 78. He ​ (b)   his Pet Rock business for one year in 1975 and he ​ (c)   $1 million. The small rocks and stones ​ (d)   from Mexican beaches, and they ​ (e)   as novelty gifts.

• died
• ran
• made
• were taken
• were sold
• was died
• was being run
• was made
• has made
• has died