They _____a lot through group work on the sports field．

19. They________a lot of suggestions for improving the workers’ living conditions.

Perce Blackborow and his companions stayed on Elephant Island for six months before rescue came, so they ________ a lot of difficulties.

   A. must go through                          B. may go through

   C. must have gone through                    D. could have gone through

Last week I went to a supermarket. After I   36  the bill and was passing through the door, the alarm suddenly started to ring. Suddenly, a young guard ran toward me and ordered me to   37  him. I felt so upset and   38 . He took me to a small room, but I was   39  frightened that I stopped at the door. Finding me   40  to enter the room, he shouted that I had to go into the room.

He closed the door. I thought he was going to hurt me. Suddenly, a   41  voice said in my ear, “Take out the things you've stolen!” “I stole nothing.” I said. “Do as I tell you. If we find them, you’ll be in trouble.” “There is nothing.” I answered. “I didn't take anything.” I said, taking everything out of my pockets and bag.

  42  this point, a guard came in and asked a salesgirl to   43  me.   44 , they found nothing.

But they didn't believe that I hadn't stolen anything. So the young guard ordered me to pass through the door alarm again.

I was   45  when it rang again. I felt   46  and burst into tears. I didn't know how to prove   47  I was innocent.

They made me go into the small room again.

“Take out the stolen things quickly,   48  we will dial 110.” They said.

“OK, call the police. I’ m not afraid.” I said   49  .

Suddenly, they   50  their tone. After a while, a salesgirl asked me to raise my feet. I did   51   she had told me. There was a label (标签) on the bottom of my shoe. That was it! That was the   52  thing that had brought me such great trouble. But it  53  my innocence.

After that, they   54  to me in the small room. But they should have apologized   55  , shouldn't they? A lot of people were there when I was taken away. What did they think of me?

They _____a lot through group work on the sports field.

   A. earned                B. gained               C. won                  D. achieved