What about 4？ I don't think it's a native way to ask such a question.

Every Sunday morning, I take a running around a park near my home. There’s a __1__ in one corner of the park. Each time I run, I see the same __2__ woman sitting by the lake. And there is always a small __3__ beside her.

While I was running last Sunday morning, my curiosity got the better of __4__, so I stopped running and walked over to her. As I got closer, I found inside the cage (笼子) were __5__ turtles (龟), slowly walking around. She had a fourth turtle on her leg that she was carefully __6__.

“Hello,” I said. “I’d love to know what you’re doing with these turtles.”

She smiled. “I’m cleaning their shells (壳),” she replied. “It’s all about the things on a turtle’s shell, __7__ algae (海藻) or scum (浮沫). They __8__ the turtle from swimming. They can __9__ weaken the shell over time. It’s my own way of doing __10__ meaningful.”

“Wow! That’s really __11__ of you! But there are turtles living in lakes all around the world. And __12__ any of these turtles has kind people like you to help them clean their shells. So how exactly are you sure that you are truly __13__?” I questioned.

The old woman smiled again. She then __14__ the turtle on her leg, brushed the last piece of algae from its shell, and said, “Sweetie, if this little guy could __15__, he’d tell you I just made all the difference in the world.”

1. A. pool B. lake
C. river D. garden

2. A. old B. young
C. serious D. beautiful

3. A. bottle B. cage
C. box D. cup

4. A. her B. you
C. me D. it

5. A. two B. three
C. four D. five

6. A. feeding B. watching
C. touching D. brushing

7. A. for B. from
C. with D. like

8. A. help B. make
C. stop D. plan

9. A. also B. ever
C. still D. already

10. A. everything B. anything
C. something D. nothing

11. A. nice B. creative
C. strange D. interesting

12. A. often B. hardly
C. always D. sometimes

13. A. playing a joke
B. making a living
C. playing a role
D. making a wish

14. A. looked for B. looked up
C. looked after D. looked at

15. A. talk B. feel
C. hear D. see