Chia động từ trong ngoặc sao cho đúng với các thì : 1. He ( work ) ....................... in the office now . 2. My friend ( enjoy ) .................. hamburgers very much 3. The students ( look ) ................... up these new words right now 4. We always ( do ) ..................... English exercises carefully 5. The sun ( rise ) ......... in the east 6. They ( talk ) .......... to John at the moment  7. He children ( sleep ) ........ well for two hours every afternoon 8. My sister ( need ) ....................... some money for books 9. It ( rain ) ........ very much in the United States giúp mk với