Giúp mình nhanh với ạ. 1. His parents (be) so angry because he (get) home late. 2. The weather (be) so cold that i (can not) sleep well last night. 3. A young couple (buy) the house next door. But they (not/live) there long. 4. I (see) a mad dog killed yesterday. 5. I (hear) that song (sing) on the radio two days ago. 6. They (sit) for two hours without taking to each other. 7. You (remember) to switch off the lights? 8. I (try) all keys in the lock, but none of them fitted. 9. There (be) many famous stars in the concert last night. 10. He (admit) not paying for the ticket.