1. They have proved that there is no life on the moon -> 2. You can buy video like this one anywhere -> 3. Had someone delivered the package before you got to the office ? A. Had the package delivered to you before you got to the office ? B. Had the package been delivered to you before you got to the office ? C. Had the package been delivered to you by someone before you got to the office ? D. Had the package been delivered you before you got the office ? 4.They put out all the candles that......... A. had be lit B. had been litted C. had been lit D. has been lit - Giúp đỡ em với mọi người huhu. Em sẽ vote 5 sao ngay ạ