My Perspectives 5, lesson 2E: The passive

More and more research into the Universe _______ nowadays.

• is doing

• are doing

• is being done

• are being done

The scientific hypothesis ______ yet.

• haven't confirmed

• hasn't confirmed

• hasn't been confirmed

• haven't been confirmed

The results of the experiment _______ twice before they were made public.

• were verifying

• had been verifying

• have been verified

• had been verified

At the moment they _______ a new expedition.

• are planning

• plan

• are being planned

• are planned

I believe the new procedure should_______ much more carefully.

• have been planned

• has been planning

• have been planning

• has been planned

Ferdinand Magellan is known to _______ the Earth.

• circumnavigate

• have circumnavigated

• has circumnavigated

• be circumnavigated

It _______ that robots will become commonplace in medical procedures in the near future.

• thought

• is thinking

• is thought

• thinks

Big funds are known to _______ in many large–scale international projects.

• involve

• been involved

• be involving

• be involved

This time tomorrow their ground–breaking theory will_______ in the media.

• have announced

• be announced

• announce

• has announced

In the Middle Ages the Earth was believed _______ flat.

• has been

• to be

• being

• that it was