C1 Passive and Causative

The architectural plans for the museum extension ______ by a famous Japanese firm.

• designing

• are designing

• were designed

• are being design

The endangered coral reefs ______ by a marine biologist team.

• protect

• is protecting

• are being monitored

• were monitor

The data breach ______ before it caused major damage.

• stopped

• was stopping

• had been contained

• had containing

The final budget report ______ next Monday.

• publishes

• is publishing

• will be presented

• will present

The skyscraper’s glass façade ______ annually to maintain its appearance.

• cleans

• is cleaned

• was cleaning

• has cleaned

All bookings for the luxury safari ______ at least three months in advance.

• have to made

• must be made

• should make

• ought make

The lost hiker ______ by a search drone just before sunset.

• found

• was located

• had find

• had locating

Several innovations ______ in the field of sustainable architecture recently.

• introduced

• are introducing

• have been introduced

• has introduced

The original castle walls ______ intact despite the renovations.

• was left

• is left

• have been left

• had left

The server infrastructure ______ to withstand cyberattacks.

• is upgrading

• is being upgrade

• is being upgraded

• upgrades