They cancelled all flights because of fog.

A. Somebody might have been stolen your car.

B. Your car might be stolen.

C. Your car might have been stolen by somebody

D. Your car might steal somebody.

A. The meeting has to be postponed because of illness.

B. The meeting had to because of illness be postponed.

C. The meeting had to be postponed by them because of illness.

D. The meeting because of illness had to be postponed.

A. Complaints should be sent to people at head office.

B. Their complaints to the head office should be sent.

C. Their complaints should send to the head office by people.

D. Complaints should be sent to the head office by people.

A. We found that the game had been cancelled.

B. The game had been cancelled.

C. We found that the game had cancelled by them.

D. The game were found to be cancelled.

A. Congress is going to be held next year in San Francisco.

B. Congress in San Francisco is going to be held next year.

C. Next year’s congress is going to be held by them held next year.

D. Next year’s congress is going to be held in San Francisco.

A. The room every day is cleaned

B. The room is every day cleaned

C. The room is cleaned every day

D. The room is cleaned by somebody every day

A. A new highway are being built around the city.

B. A new highway is being built around the city by they

C. A new highway around the city is being built.

D. Around the city a new highway is built.