They cancelled all flights because of fog.

A. Correct

B. Incorrect

a. I didn’t realize that our conversation was recorded.

b. I didn't realize that our conversation was being recorded

c. I didn't realize that our conversation was being recorded by someone.

d. Our conversation wasn't realized to be recorded.

a. This road is not used very often

b. Not very often this road is not used

c. This road very often is not used

d. This road not very often is used

a. I was accused by somebody of stealing money.

b. I was accused of stealing money

c. I was accused of stealing money by somebody

d. I was accused stealing money.

a. How are languages learned?

b. How are languages learned by people?

c. How languages are learned?

d. Languages are learned how?

A. Correct

B. Incorrect

a. We found that the game had been cancelled.

b. The game had been cancelled.

c. We found that the game had been cancelled by them.

d. The game were found to be cancelled.