6. Prepositions of time: at / in / on

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1. She always gets up early _____ the morning, so she can make it to class _____ time.

2. I was sick, so I didn't go to work _____ last Thursday, but I did go to work _____ Friday.

3. Mary stopped talking _____ the middle of her story, and suddenly started to cry.

4. Late _____ night, you can hear coyotes howling in the distance.

5. Just wait a second, I'll be there _____ a minute.

6. I need to give my parents a call. I haven't talked to them _____ over a month.

7. Barbara is going to start her new job _____ next September..

8. The professor said _____ the first day of the course that there would be a big final test _____ the end of the semester.

9. If they don't arrive _____ the next ten minutes, I'm leaving.

10. We were really worried _____ first because the banks were closed _____ Saturdays, so we couldn't exchange money. But _____ the end, everything worked out because we were able to exchange money at the hotel.
Complete with at / on / in or even no preposition depending on the sentence.