阅读理解并回答下面的问题。

      Frank Smith   I’m in Grade Two in high school. I have a part-time job in a restaurant. I send dishes

for the restaurant on Saturdays and Sundays from 8:00 a. m. until 4:00 p. m. I get $ 5. 50 an hour, It isn't much money, but I save almost every cent. Because I want to go to a good university, and it needs a lot

of money.

      Liz Johnson   I'm in Grade Three in high school. I have a job as a cashier in a store. The job pays

well ――about $ 6. 75 an hour. I work every weeknight after school from 4:00 until 8:00. I don't have

time for homework, and my grades aren't very good this year. But I have to study hard because I want

to be a doctor in the future.

      Mary Connor  It's my first year in college.  College is very expensive so I work in a law office for

three hours every weekday afternoon.  I get $ 8. 25 an hour. The job gives me good experience because

I want to be a lawyer someday. But I don't want to work every term. I need time to study.

l. What does Frank Smith do in the restaurant?

2. How long does Liz Johnson work every weeknight?

3. Who gets the highest pay an hour?