Chuyển sang câu bị động: Mr.Pike designed that bridge in 1970. They mailed the boxes. He read all the little to his friends yesterday

1. Mr.Pike designed that bridge in 1970
2. They mailed the boxes
3. He read all the little to his friends yesterday
4. They did not invite Bill and Ann to the party
5. Miss Peter wrote all of the reports for Mr. Johnson
6. The teacher corrected our homework