题目内容：

A few weeks ago，our dog，which we had kept for more than ten years，had to be put down.First，a tumor on her stomach got worse，and she was very ____.Then，the pain in her back got so bad that sometimes she ___ lie down in the middle of a walk and couldn't take another ____.

When I first found out，I was very sad and cried a lot.She was more like a sister to me than a ___.But I was also angry at my stepfather，Steve，who told us the ___ a week after it happened.He ____ because he didn't want to worry us，and he didn't want me to get depressed (抑郁的)and fail my exams.I just thought she was ____ at the animals' hospital.

I think you know all the ____ that went through my head：She was my dog！Why didn't he tell us earlier？I didn't even get to say goodbye.

People in my family have a ____ of keeping things from me to protect me，such as only telling me that my aunt had cancer ____ she had already improved.All I could think was：Not again!

I ____ to my mum，and she said，“I know.I'm ____，too.”I opened my mouth to shout.And then she added，“I'm so angry with Steve that he had to ____ through all this on his own.”Hearing my mum's words，I shut up my mouth.I had been so ____ on myself.I hadn't thought about ____ Steve was going through.That dog was his baby.He'd had her for longer than he'd had us—and he had to make the decision to ____ her life，and then kept in silence for an entire ____.All my anger melted away，and all I felt was ____.

It makes me realize that we focus so much on ourselves that we ____ the pain of others.At that moment，my mum's words were an incredible ____ that I'll never forget.

1.A.lazy  B．lonely

C．painful  D．shameful

2.A.would  B．should

C．might  D．could

3.A.walk  B．step

C．foot  D．breath

4.A.tool  B．toy

C．baby D．pet

5.A.plan  B．accident

C．anecdote  D．truth

6.A.lied  B．waited

C．reflected D．hesitated

7.A.still  B．once

C．even  D．never

8.A.facts  B．opinions

C．thoughts  D．doubts

9.A.story  B．secret

C．habit  D．hobby

10.A.until  B．before

C．while  D．after

11.A.adjusted  B．turned

C．contributed  D．related

12.A.angry  B．shocked

C．guilty  D．abused

13.A.break  B．go

C．look  D．push

14.A.focused  B．hooked

C．dependent  D．hard

15.A.that  B．where

C．what  D．which

16.A.save B．expand

C．make  D．end

17.A.year  B．month

C．week  D．day

18.A.regret  B．blame

C．sorrow  D．sympathy

19.A.shared  B．ignored

C．reminded  D．rid

20.A.comfort  B．compromise

C．gift  D．suggestion