Образовать - , +, ?

        1. I (to do) morning exercises. 

        2. He (to work) in the mine. 

        3. She (to spend) her free time in the saloons and restaurants. 

        4. We (to live) in the crowded city. 

        5. They (read) a weekly newspaper yesterday. 

        6. Somebody (to knock) at my door, I (to be) scared. 

        7. Helen (to see) ruined buildings in Rome. 

        8. You (to introduce) yourself  well at the presentation.

        9. You (to be) naughty. 

       10. It (to be) difficult to remember everything