Simple.
1. After I took Roy to school, I (to drive) … straight to work.
2. I’m an experienced driver, but I (never, to drive) … a bus or a big
truck. 3. I (to sing) … a duet with my mother at the art benefit last
night. 4. We (to sing) … together ever since I was a small child. 5. I
(never, to run) in a marathon race, and I don’t intend to. 6. I’m out of
breath because I (to run) … all my way over here. 7. Last night, my
brother (to tell) … me a secret. 8. He (to tell) … me a lot of secrets in
his lifetime. 8. When I visited London last spring, I (to stand) … in
the main gallery and felt a great sense of history. 9. Many great
world leaders (to stand) … there over years. 10. I (to spend) … all of
my money at the mall yesterday. 11. I don’t have my rent money this
month. I (already, to spend) … it on other things. 12. I consider my-
59
self fortunate because I (to make) … many good friends in my lifetime. 13. I (to make) … a terrible mistake last night . I forgot that my
friend had invited me to his apartment for dinner. 14. The price of
flour (to rise) … a lot since 1996. 15. When his name was announced,
Nick (to rise) … from his seat and walked to the podium to receive his
award. 16. I (to feel) … terrible yesterday, so I stayed in bed. 17. I (to
feel) … terrible for a week now. I’d better see a doctor.

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