People think that an apple a day is good for you.
A. It is thought that an apple a day is good for you.
B. It was thought that an apple a day is good for you.
C. They are thought that an apple a day is good for you.
D. They thought that an apple a day is good for you.
Chọn đáp án A
Police reported that a man had been helping them with their investigation.