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33. So difficult       it to work out the problem that I decided to ask Tom for advice.

   A. I did find      B. did I find       C. I have found    D. have I found

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32. The young girl sitting next to me on the plane was very nervous. She       before.

   A. hasn't flown     B. didn't fly       C. hadn't flown     D. wasn't flying

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31. "You can't have this football back        you promise not to kick it at my cat again," the

   old man said firmly.

   A. because       B. since          C. when        D. until

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30.      this cake, you'll need 2 eggs, 175 g sugar and 175 g flour.

   A. Having made     B. Make         C. To make       D. Making

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29. No matter how frequently      , the works of Beethoven still attract people all over the  world.

   A. performed      B. performing      C. to be performed    D. being performed

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28. Much of the power of the trade unions has been lost       , their political influence should be very great.

   A. As a result       B. As usual        C. Even so        D. So far

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27. Sarah had her washing machine repaired the day before yesterday,       she?

   A. had         B. did          C. hadn't        D. didn't

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26. Jenny was very sad over the loss of the photos she had shot at Canada,       this was a  memory she especially treasured.

   A. as          B. if          C. when        D. where

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25. I was still sleeping when the fire      , and then it spread quickly.

   A. broke out      B. put out         C. came out       D. got out

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24. The traffic lights       green and I pulled away.

   A. came        B. grew          C. got         D. went

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