1. As soon as I (download) downloaded the document, I knew I (make) had made a mistake.

2. Mary (ring) rang John’s doorbell at 8:15 yesterday but John (already/ leave) had already left the house.

3.By the time the firemen (arrive) arrived, the fire (destroy) had destroyed three houses.

4,our economy (not stand) hadn't stood a chance of developing before the government (adopt) adopted the open-door policy.

5when I last (speak) spoke to her, she still (not finish) hadn't finished her assignment.

6. nobody (come) came to the meeting because Angela (forget) had forgotten to tell them about it.

7. she (go) had gone to Disneyland three times when she (be) was a little girl.

8. sarah (drive) had driven three hundred miles by the time she (arrive) arrived in Tacoma.

9. after I (complete)  had completed the form, I (give) gave it to the secretary.

1. As soon as I (download) downloaded the document, I knew I (make) had made a mistake.

2. Mary (ring) rang John’s doorbell at 8:15 yesterday but John (already/ leave) had already left the house.

3. By the time the firemen (arrive) arrivd, the fire (destroy) had destroyed three houses.

4. Our economy (not stand) hadn't stood a chance of developing before the government (adopt) adopted the open-door policy.

5. When I last (speak) spoke to her, she still (not finish) hadn't finished her assignment.

6. Nobody (come) came to the meeting because Angela (forget) had forgotten to tell them about it.

7. She (go) had gone to Disneyland three times when she (be) was a little girl.

8. Sarah (drive) had driven three hundred miles by the time she (arrive) arrived in Tacoma.

9. After I (complete) had completed the form, I (give) gave it to the secretary.