When I was nine years old, I wanted to keep a pet fish. After months of 1 . I finally had enough money to get one. I named it Bob. I put 2 beautiful toy house with windows in the tank （鱼缸）so that Bob could swim through. Sometimes, I would draw pictures of 3 fish and sea plants and tape them to the side of the tank, so Bob wouldn't get lonely while I 4 at school.

However, 5 a month, I noticed that the tank was getting dirty. My dad asked me 6 it into the kitchen. He wanted to make sure I knew 7 to do so that Bob wouldn't get hurt.

First, my dad told me to reach 8 into the tank and take the house away. 9 I took my hand out of the water, I noticed that the water was a lot 10 than Ithought.

“That's smelly!” I said. “Let's hurry up and 11 the fish out of the water, Dad!”

“Not so fast, Ben,”Dad said.“We need to save some of the old water, 12 Bob needs a place to stay while we clean the tank.”

“Why?” I asked.

“Running water from the tap can be harmful to fish,” Dad explained, “That 13_ we can't put Bob into fresh water right away. Instead, we need to put him in a cup with 14 of the dirty water for a while.” ...

All seemed so easy. I hoped the next time I would be able to clean the tank all by 15 .

A．

1. save

B．

saves

C．

saved

D．

saving

A．

2. a

B．

an

C．

the

D．

/

A．

3. other

B．

others

C．

the other

D．

the others

A．

4. am

B．

was

C．

were

D．

will be

A．

5. before

B．

for

C．

after

D．

during

A．

6.bring

B．

bringing

C．

brought

D．

to bring

A．

7. where

B．

what

C．

how

D．

why

A．

8. care

B．

careful

C．

carefully

D．

caring

A．

9. If

B．

Unless

C．

When

D．

Though

A．

10. dirty

B．

dirtier

C．

dirtiest

D．

the dirtiest

A．

11. get

B．

gets

C．

got

D．

getting

A．

12. so

B．

or

C．

because

D．

but

A．

13. mean

B．

means

C．

meant

D．

is meaning

A．

14. few

B．

a few

C．

little

D．

a little

A．

15. me

B．

my

C．

mine

D．

myself