[填空题]

What has been done traditionally better in America ______.

[单项选择]What has recently been done to the space
A. The walls have been painted.
B. The walls have been separated.
C. A private office has been built.
D. Bathrooms have been added.

[填空题]

What has been done to have fewer cars on the freeways Asking several people to ______.

[填空题]It is no use (regret) ______ what has been done.

[单项选择]All（）has already been done.
A. can be done
B. should be done
C. that can be clone
D. what should be done

[单项选择]Based on research that has been done regarding the relationship between deficits and interest rates it can be concluded that:（）
A. year-to-year data indicate a strong relationship between budget deficits and interest rates but over a more lengthy period, persistently large budget deficits do lead to higher interest rates as implied by the crowding-out model.
B. year-to-year data indicate a loose relationship between budget surpluses and interest rates but over a more lengthy period, persistently large budget deficits do lead to higher interest rates as implied by the crowding-out model.
C. year-to-year data indicate a loose relationship between budget deficits and interest rates but over a more lengthy period, persistently large budget deficits do lead to higher interest rates as implied by the crowding-out model.

[简答题]Research has also been done into the way people’s behavior changes in a number of small, seemingly unimportant ways when they lie. (Passage 1)

[单项选择]What has Tom already done
A. Yes, he did.
B. Martin and all the friends did.
C. No, he didn’t.