Sylvia: When 1. you study chemistry in high school?
Tyler: I 2. chemistry in tenth grade.
Sylvia: When did you study economics?
Tyler: I 3. economics since high school. I plan on getting my Masters in economics someday.
Hank: Did you get your injury 1. out?
Erin: Yes, I already 2. to the doctor today. I 3. so many ailments lately that I 4. to the doctor four times so far this month.
Husband: Can you pick me up some cheese?
Wife: I 1. to the store today, and I don't want to go back.