Chia động từ trong ngoặc

1. I (have)             dinner when his friend called.
    2. Joan (travel)             around the world.
    3. We (not begin)             to study for the test yet.
    4. Don’t get on a bus while it (run)            .
    5. I (invite)             them to my birthday party yesterday, however, they (not come)    .
    6. Look! Somebody (clean)             the room.
    7. My brother (begin)             looking for a job in January.
    8. Timson (make)             13 films and I think her latest is the best.
    9. She (cook)             at the moment. That’s why she can’t answer the phone.
    10. She doesn’t mind (go)             out in the evening.
    11. I (not see)             him since we (leave)             school.
    12. Football (be)             my favourite sport. I like (play)             it in my free time.
    13. Jane (leave)             just a few minutes ago.
    14. She (be)             extremely quiet since her husband died.