I, Chuyển sang câu bị động.
1, Nina has read the newspaper already.
=>The newspaper has been read already by Nina
2, They have seenthese movies yet.
=>These movies have been seen yet
3. I have signed the contract.
=>The contract has been signed
4. The boys have just informed the news.
=>The news have just been informed by the boys
5. Someone stole Nam's wallet.
=>Nam's wallet was stolen
6. John was eating this cake.
=>This cake was being eaten by John
7. A tiger kills a deer.
=>A deer is killed by a tiger
8. He learns English at school.
=>English is learned at school